Modified: pivot/trunk/core/src/org/apache/pivot/functional/monad/Failure.java
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/monad/Failure.java?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/functional/monad/Failure.java
(original)
+++ pivot/trunk/core/src/org/apache/pivot/functional/monad/Failure.java Tue Oct
31 19:15:47 2023
@@ -1,86 +1,86 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.pivot.functional.monad;
-
-/**
- * Generic container, to hold the unsuccessful result of a computation (a
RuntimeException).
- */
-public class Failure<T> extends Try<T> {
- protected final RuntimeException value;
-
- /**
- * Default constructor, do not use because it set null as invariant value
to hold.
- */
- public Failure() {
- value = new IllegalArgumentException("failure exception set to null.");
- }
-
- /**
- * Constructor with a value to set.
- * @param val the RuntimeException to set
- */
- public Failure(final RuntimeException val) {
- this.value = val;
- }
-
- @Override
- public final boolean isSuccess() {
- return false;
- }
-
- @Override
- public final T getValue() {
- throw value;
- }
-
- @Override
- public String toString() {
- return "Failure(" + ((value != null) ? value.toString() : "null") +
")";
- }
-
- @Override
- public int hashCode() {
- final int prime = 31;
- int result = 1;
- result = prime * result + ((value == null) ? 0 : value.hashCode());
- return result;
- }
-
- @SuppressWarnings("rawtypes")
- @Override
- public boolean equals(Object obj) {
- if (this == obj) {
- return true;
- }
- if (obj == null) {
- return false;
- }
- if (!(obj instanceof Failure)) {
- return false;
- }
- Failure other = (Failure) obj;
- if (value == null) {
- if (other.value != null) {
- return false;
- }
- } else if (!value.equals(other.value)) {
- return false;
- }
- return true;
- }
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.functional.monad;
+
+/**
+ * Generic container, to hold the unsuccessful result of a computation (a
RuntimeException).
+ */
+public class Failure<T> extends Try<T> {
+ protected final RuntimeException value;
+
+ /**
+ * Default constructor, do not use because it set null as invariant value
to hold.
+ */
+ public Failure() {
+ value = new IllegalArgumentException("failure exception set to null.");
+ }
+
+ /**
+ * Constructor with a value to set.
+ * @param val the RuntimeException to set
+ */
+ public Failure(final RuntimeException val) {
+ this.value = val;
+ }
+
+ @Override
+ public final boolean isSuccess() {
+ return false;
+ }
+
+ @Override
+ public final T getValue() {
+ throw value;
+ }
+
+ @Override
+ public String toString() {
+ return "Failure(" + ((value != null) ? value.toString() : "null") +
")";
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result + ((value == null) ? 0 : value.hashCode());
+ return result;
+ }
+
+ @SuppressWarnings("rawtypes")
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj == null) {
+ return false;
+ }
+ if (!(obj instanceof Failure)) {
+ return false;
+ }
+ Failure other = (Failure) obj;
+ if (value == null) {
+ if (other.value != null) {
+ return false;
+ }
+ } else if (!value.equals(other.value)) {
+ return false;
+ }
+ return true;
+ }
+
+}
Propchange: pivot/trunk/core/src/org/apache/pivot/functional/monad/Failure.java
------------------------------------------------------------------------------
svn:eol-style = native
Modified: pivot/trunk/core/src/org/apache/pivot/functional/monad/Monad.java
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/monad/Monad.java?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/functional/monad/Monad.java (original)
+++ pivot/trunk/core/src/org/apache/pivot/functional/monad/Monad.java Tue Oct
31 19:15:47 2023
@@ -1,44 +1,44 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.pivot.functional.monad;
-
-/**
- * Definition of a generic Monad, which is a type that wraps another type and
- * gives some form of quality to the underlying type (see
- * <a href="https://en.wikipedia.org/wiki/Monad_(functional_programming)">
- * https://en.wikipedia.org/wiki/Monad_(functional_programming)</a>).
- *
- * @param <T> The underlying type wrapped by this Monad.
- */
-public abstract class Monad<T> implements MonadicOperations<T> {
-
- /**
- * Default constructor.
- */
- protected Monad() {
- // no-op
- }
-
- /**
- * {@inheritDoc}
- */
- @Override
- public String toString() {
- return "Monad(" + getClass().getTypeParameters()[0].getName() + ")";
- }
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.functional.monad;
+
+/**
+ * Definition of a generic Monad, which is a type that wraps another type and
+ * gives some form of quality to the underlying type (see
+ * <a href="https://en.wikipedia.org/wiki/Monad_(functional_programming)">
+ * https://en.wikipedia.org/wiki/Monad_(functional_programming)</a>).
+ *
+ * @param <T> The underlying type wrapped by this Monad.
+ */
+public abstract class Monad<T> implements MonadicOperations<T> {
+
+ /**
+ * Default constructor.
+ */
+ protected Monad() {
+ // no-op
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public String toString() {
+ return "Monad(" + getClass().getTypeParameters()[0].getName() + ")";
+ }
+
+}
Propchange: pivot/trunk/core/src/org/apache/pivot/functional/monad/Monad.java
------------------------------------------------------------------------------
svn:eol-style = native
Modified:
pivot/trunk/core/src/org/apache/pivot/functional/monad/MonadicOperations.java
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/monad/MonadicOperations.java?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
---
pivot/trunk/core/src/org/apache/pivot/functional/monad/MonadicOperations.java
(original)
+++
pivot/trunk/core/src/org/apache/pivot/functional/monad/MonadicOperations.java
Tue Oct 31 19:15:47 2023
@@ -1,29 +1,29 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.pivot.functional.monad;
-
-/**
- * Definition of generic Monadic methods.
- * <p> For future development: check on adding other abstract (generic,
typical of Monads:
- * apply, unit, map, flatten, etc) methods here and see what to implement in
Option and in Try ...)
- *
- * @param <T> The wrapped type to which this operation is to be applied.
- */
-@SuppressWarnings("unused")
-public interface MonadicOperations<T> {
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.functional.monad;
+
+/**
+ * Definition of generic Monadic methods.
+ * <p> For future development: check on adding other abstract (generic,
typical of Monads:
+ * apply, unit, map, flatten, etc) methods here and see what to implement in
Option and in Try ...)
+ *
+ * @param <T> The wrapped type to which this operation is to be applied.
+ */
+@SuppressWarnings("unused")
+public interface MonadicOperations<T> {
+
+}
Propchange:
pivot/trunk/core/src/org/apache/pivot/functional/monad/MonadicOperations.java
------------------------------------------------------------------------------
svn:eol-style = native
Modified: pivot/trunk/core/src/org/apache/pivot/functional/monad/None.java
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/monad/None.java?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/functional/monad/None.java (original)
+++ pivot/trunk/core/src/org/apache/pivot/functional/monad/None.java Tue Oct 31
19:15:47 2023
@@ -1,70 +1,70 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.pivot.functional.monad;
-
-import java.util.NoSuchElementException;
-
-/**
- * Container for an immutable no-value, derived from Option.
- */
-@SuppressWarnings({"unchecked", "rawtypes"})
-public final class None<T> extends Option<T> {
- private static final None INSTANCE = new None<>();
-
- /**
- * Get the static instance.
- * @param <T> The type of this no-value object.
- * @return the static instance
- */
- public static final <T> None<T> getInstance() {
- return INSTANCE;
- }
-
- /**
- * Default constructor, does nothing.
- */
- public None() {
- // super(null);
- // no-op
- }
-
- @Override
- public boolean hasValue() {
- return false;
- }
-
- @Override
- public T getValue() {
- throw new NoSuchElementException("None does not contain a value");
- }
-
- @Override
- public String toString() {
- return "None()";
- }
-
- @Override
- public boolean equals(Object other) {
- return (other == null || other.getClass() != None.class) ? false :
true;
- }
-
- @Override
- public int hashCode() {
- return -31;
- }
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.functional.monad;
+
+import java.util.NoSuchElementException;
+
+/**
+ * Container for an immutable no-value, derived from Option.
+ */
+@SuppressWarnings({"unchecked", "rawtypes"})
+public final class None<T> extends Option<T> {
+ private static final None INSTANCE = new None<>();
+
+ /**
+ * Get the static instance.
+ * @param <T> The type of this no-value object.
+ * @return the static instance
+ */
+ public static final <T> None<T> getInstance() {
+ return INSTANCE;
+ }
+
+ /**
+ * Default constructor, does nothing.
+ */
+ public None() {
+ // super(null);
+ // no-op
+ }
+
+ @Override
+ public boolean hasValue() {
+ return false;
+ }
+
+ @Override
+ public T getValue() {
+ throw new NoSuchElementException("None does not contain a value");
+ }
+
+ @Override
+ public String toString() {
+ return "None()";
+ }
+
+ @Override
+ public boolean equals(Object other) {
+ return (other == null || other.getClass() != None.class) ? false :
true;
+ }
+
+ @Override
+ public int hashCode() {
+ return -31;
+ }
+
+}
Propchange: pivot/trunk/core/src/org/apache/pivot/functional/monad/None.java
------------------------------------------------------------------------------
svn:eol-style = native
Modified: pivot/trunk/core/src/org/apache/pivot/functional/monad/Option.java
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/monad/Option.java?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/functional/monad/Option.java
(original)
+++ pivot/trunk/core/src/org/apache/pivot/functional/monad/Option.java Tue Oct
31 19:15:47 2023
@@ -1,142 +1,142 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.pivot.functional.monad;
-
-import java.util.Iterator;
-import org.apache.pivot.annotations.UnsupportedOperation;
-
-/**
- * Definition of a generic Option container, to hold an invariant value
(derived from Monad).
- */
-public abstract class Option<T> extends Monad<T> implements Iterable<T> {
- protected final T value;
-
- /**
- * Default constructor, do not use because it set null as invariant value
to hold.
- */
- public Option() {
- this(null);
- }
-
- /**
- * Constructor with a value to set in the Option.
- * @param val the value to set in the Option
- */
- public Option(final T val) {
- this.value = val;
- }
-
- /**
- * Tell if the value has been set in the Option.
- * @return true if set, otherwise false
- */
- public abstract boolean hasValue();
-
- /**
- * Return the value contained in the Option.
- * @return the value (if set)
- */
- public abstract T getValue();
-
- /**
- * Return the value contained in the Option, or an alternative value if
not set.
- * @param alternativeValue the value to return as alternative (if value
wasn't set in the Option)
- * @return value if set, otherwise alternativeValue
- */
- public T getValueOrElse(final T alternativeValue) {
- return hasValue() ? getValue() : alternativeValue;
- }
-
- /**
- * Return the value contained in the Option, or null if it hasn't a value
set.
- * @return value if set, otherwise null
- */
- public T getValueOrNull() {
- return getValueOrElse(null);
- }
-
- @Override
- public String toString() {
- return "Option(" + ((value != null) ? value.toString() : "null") + ")";
- }
-
- @Override
- public int hashCode() {
- final int prime = 31;
- int result = 1;
- result = prime * result + ((value == null) ? 0 : value.hashCode());
- return result;
- }
-
- @SuppressWarnings("rawtypes")
- @Override
- public boolean equals(Object obj) {
- if (this == obj) {
- return true;
- }
- if (obj == null) {
- return false;
- }
- if (!(obj instanceof Option)) {
- return false;
- }
- Option other = (Option) obj;
- if (value == null) {
- if (other.value != null) {
- return false;
- }
- } else if (!value.equals(other.value)) {
- return false;
- }
- return true;
- }
-
- /**
- * Return an Iterator over this option.
- * @see java.lang.Iterable#iterator()
- */
- @Override
- public Iterator<T> iterator() {
- return new OptionIterator();
- }
-
-
- /**
- * Immutable iterator on the value contained in the Option (if any).
- */
- private class OptionIterator implements Iterator<T> {
- private int cursor = 0;
-
- @Override
- public boolean hasNext() {
- return (hasValue() && cursor == 0);
- }
-
- @Override
- public T next() {
- cursor++;
- return getValue();
- }
-
- @Override
- @UnsupportedOperation
- public void remove() {
- throw new UnsupportedOperationException();
- }
- }
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.functional.monad;
+
+import java.util.Iterator;
+import org.apache.pivot.annotations.UnsupportedOperation;
+
+/**
+ * Definition of a generic Option container, to hold an invariant value
(derived from Monad).
+ */
+public abstract class Option<T> extends Monad<T> implements Iterable<T> {
+ protected final T value;
+
+ /**
+ * Default constructor, do not use because it set null as invariant value
to hold.
+ */
+ public Option() {
+ this(null);
+ }
+
+ /**
+ * Constructor with a value to set in the Option.
+ * @param val the value to set in the Option
+ */
+ public Option(final T val) {
+ this.value = val;
+ }
+
+ /**
+ * Tell if the value has been set in the Option.
+ * @return true if set, otherwise false
+ */
+ public abstract boolean hasValue();
+
+ /**
+ * Return the value contained in the Option.
+ * @return the value (if set)
+ */
+ public abstract T getValue();
+
+ /**
+ * Return the value contained in the Option, or an alternative value if
not set.
+ * @param alternativeValue the value to return as alternative (if value
wasn't set in the Option)
+ * @return value if set, otherwise alternativeValue
+ */
+ public T getValueOrElse(final T alternativeValue) {
+ return hasValue() ? getValue() : alternativeValue;
+ }
+
+ /**
+ * Return the value contained in the Option, or null if it hasn't a value
set.
+ * @return value if set, otherwise null
+ */
+ public T getValueOrNull() {
+ return getValueOrElse(null);
+ }
+
+ @Override
+ public String toString() {
+ return "Option(" + ((value != null) ? value.toString() : "null") + ")";
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result + ((value == null) ? 0 : value.hashCode());
+ return result;
+ }
+
+ @SuppressWarnings("rawtypes")
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj == null) {
+ return false;
+ }
+ if (!(obj instanceof Option)) {
+ return false;
+ }
+ Option other = (Option) obj;
+ if (value == null) {
+ if (other.value != null) {
+ return false;
+ }
+ } else if (!value.equals(other.value)) {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Return an Iterator over this option.
+ * @see java.lang.Iterable#iterator()
+ */
+ @Override
+ public Iterator<T> iterator() {
+ return new OptionIterator();
+ }
+
+
+ /**
+ * Immutable iterator on the value contained in the Option (if any).
+ */
+ private class OptionIterator implements Iterator<T> {
+ private int cursor = 0;
+
+ @Override
+ public boolean hasNext() {
+ return (hasValue() && cursor == 0);
+ }
+
+ @Override
+ public T next() {
+ cursor++;
+ return getValue();
+ }
+
+ @Override
+ @UnsupportedOperation
+ public void remove() {
+ throw new UnsupportedOperationException();
+ }
+ }
+
+}
Propchange: pivot/trunk/core/src/org/apache/pivot/functional/monad/Option.java
------------------------------------------------------------------------------
svn:eol-style = native
Modified:
pivot/trunk/core/src/org/apache/pivot/functional/monad/OptionCompanion.java
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/monad/OptionCompanion.java?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/functional/monad/OptionCompanion.java
(original)
+++ pivot/trunk/core/src/org/apache/pivot/functional/monad/OptionCompanion.java
Tue Oct 31 19:15:47 2023
@@ -1,111 +1,111 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.pivot.functional.monad;
-
-import java.util.Objects;
-
-/**
- * Utility class for additional Option methods.
- */
-@SuppressWarnings({"unchecked", "rawtypes"})
-public final class OptionCompanion<T> {
- private static final OptionCompanion INSTANCE = new OptionCompanion<>();
-
- /**
- * Get the static instance.
- * @param <T> The type of this companion object.
- * @return the static instance
- */
- public static final <T> OptionCompanion<T> getInstance() {
- return INSTANCE;
- }
-
- /**
- * Default constructor, not usable from outside.
- */
- private OptionCompanion() {
- // no-op
- }
-
-
- /**
- * Utility method to say if the given argument is an Option.
- *
- * @param val the value to test
- * @return true if it's an Option, false otherwise
- */
- public final boolean isOption(final T val) {
- return val instanceof Option;
- }
-
- /**
- * Utility method to build an Option, depending on the value given.
- * @param val the value to set
- * @return Some(val) or None(), depending on the given value
- */
- public Option<T> fromValue(final T val) {
- if (val != null) {
- return new Some<>(val);
- }
-
- return None.getInstance();
- }
-
- /**
- * Utility method to return the value contained in the given Option.
- * @param o the Option
- * @return the value if any, or null
- */
- public T toValue(final Option<T> o) {
- Objects.requireNonNull(o);
-
- if (!o.hasValue()) {
- return null;
- }
-
- return o.getValue();
- }
-
- /**
- * Utility method to return the value contained in the given Option,
- * or an alternate value if not present.
- * @param o the Option
- * @param alternativeValue the alternative value (null could be used here)
- * @return value if set, otherwise alternativeValue
- */
- public T toValueOrElse(final Option<T> o, final T alternativeValue) {
- Objects.requireNonNull(o);
-
- return o.getValueOrElse(alternativeValue);
- }
-
- /**
- * Utility method that tell if the given Option has nested Option
instances.
- * @param o the Option to test
- * @return true if it contains at least one nested Option, otherwise false
- */
- public boolean hasNestedOptions(final Option<T> o) {
- Objects.requireNonNull(o);
-
- if (o instanceof None) {
- return false;
- }
-
- return o.getValue() instanceof Option;
- }
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.functional.monad;
+
+import java.util.Objects;
+
+/**
+ * Utility class for additional Option methods.
+ */
+@SuppressWarnings({"unchecked", "rawtypes"})
+public final class OptionCompanion<T> {
+ private static final OptionCompanion INSTANCE = new OptionCompanion<>();
+
+ /**
+ * Get the static instance.
+ * @param <T> The type of this companion object.
+ * @return the static instance
+ */
+ public static final <T> OptionCompanion<T> getInstance() {
+ return INSTANCE;
+ }
+
+ /**
+ * Default constructor, not usable from outside.
+ */
+ private OptionCompanion() {
+ // no-op
+ }
+
+
+ /**
+ * Utility method to say if the given argument is an Option.
+ *
+ * @param val the value to test
+ * @return true if it's an Option, false otherwise
+ */
+ public final boolean isOption(final T val) {
+ return val instanceof Option;
+ }
+
+ /**
+ * Utility method to build an Option, depending on the value given.
+ * @param val the value to set
+ * @return Some(val) or None(), depending on the given value
+ */
+ public Option<T> fromValue(final T val) {
+ if (val != null) {
+ return new Some<>(val);
+ }
+
+ return None.getInstance();
+ }
+
+ /**
+ * Utility method to return the value contained in the given Option.
+ * @param o the Option
+ * @return the value if any, or null
+ */
+ public T toValue(final Option<T> o) {
+ Objects.requireNonNull(o);
+
+ if (!o.hasValue()) {
+ return null;
+ }
+
+ return o.getValue();
+ }
+
+ /**
+ * Utility method to return the value contained in the given Option,
+ * or an alternate value if not present.
+ * @param o the Option
+ * @param alternativeValue the alternative value (null could be used here)
+ * @return value if set, otherwise alternativeValue
+ */
+ public T toValueOrElse(final Option<T> o, final T alternativeValue) {
+ Objects.requireNonNull(o);
+
+ return o.getValueOrElse(alternativeValue);
+ }
+
+ /**
+ * Utility method that tell if the given Option has nested Option
instances.
+ * @param o the Option to test
+ * @return true if it contains at least one nested Option, otherwise false
+ */
+ public boolean hasNestedOptions(final Option<T> o) {
+ Objects.requireNonNull(o);
+
+ if (o instanceof None) {
+ return false;
+ }
+
+ return o.getValue() instanceof Option;
+ }
+
+}
Propchange:
pivot/trunk/core/src/org/apache/pivot/functional/monad/OptionCompanion.java
------------------------------------------------------------------------------
svn:eol-style = native
Modified: pivot/trunk/core/src/org/apache/pivot/functional/monad/Some.java
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/monad/Some.java?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/functional/monad/Some.java (original)
+++ pivot/trunk/core/src/org/apache/pivot/functional/monad/Some.java Tue Oct 31
19:15:47 2023
@@ -1,71 +1,71 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.pivot.functional.monad;
-
-/**
- * Container for an immutable value, derived from Option.
- */
-public final class Some<T> extends Option<T> {
-
- /**
- * Default constructor, do not use here or an IllegalArgumentException will
- * be thrown.
- */
- public Some() {
- throw new IllegalArgumentException("Some must have a value in the
constructor");
- }
-
- /**
- * Constructor with a value to set here.
- *
- * @param val the value to set
- */
- public Some(T val) {
- super(val);
- }
-
- @Override
- public boolean hasValue() {
- return true;
- }
-
- @Override
- public T getValue() {
- return value;
- }
-
- @Override
- public String toString() {
- return "Some(" + value.toString() + ")";
- }
-
- @Override
- public boolean equals(Object other) {
- if (other == null || other.getClass() != Some.class) {
- return false;
- }
- Some<?> otherAsSome = (Some<?>) other;
- Object otherAsSomeValue = otherAsSome.getValue();
- return value.equals(otherAsSomeValue);
- }
-
- @Override
- public int hashCode() {
- return 31 * ((value != null) ? value.hashCode() : 0);
- }
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.functional.monad;
+
+/**
+ * Container for an immutable value, derived from Option.
+ */
+public final class Some<T> extends Option<T> {
+
+ /**
+ * Default constructor, do not use here or an IllegalArgumentException will
+ * be thrown.
+ */
+ public Some() {
+ throw new IllegalArgumentException("Some must have a value in the
constructor");
+ }
+
+ /**
+ * Constructor with a value to set here.
+ *
+ * @param val the value to set
+ */
+ public Some(T val) {
+ super(val);
+ }
+
+ @Override
+ public boolean hasValue() {
+ return true;
+ }
+
+ @Override
+ public T getValue() {
+ return value;
+ }
+
+ @Override
+ public String toString() {
+ return "Some(" + value.toString() + ")";
+ }
+
+ @Override
+ public boolean equals(Object other) {
+ if (other == null || other.getClass() != Some.class) {
+ return false;
+ }
+ Some<?> otherAsSome = (Some<?>) other;
+ Object otherAsSomeValue = otherAsSome.getValue();
+ return value.equals(otherAsSomeValue);
+ }
+
+ @Override
+ public int hashCode() {
+ return 31 * ((value != null) ? value.hashCode() : 0);
+ }
+
+}
Propchange: pivot/trunk/core/src/org/apache/pivot/functional/monad/Some.java
------------------------------------------------------------------------------
svn:eol-style = native
Modified: pivot/trunk/core/src/org/apache/pivot/functional/monad/Success.java
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/monad/Success.java?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/functional/monad/Success.java
(original)
+++ pivot/trunk/core/src/org/apache/pivot/functional/monad/Success.java Tue Oct
31 19:15:47 2023
@@ -1,86 +1,86 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.pivot.functional.monad;
-
-/**
- * Generic container, to hold the successful result of a computation.
- */
-public class Success<T> extends Try<T> {
- protected final T value;
-
- /**
- * Default constructor, do not use because it will throw an exception.
- */
- public Success() {
- throw new IllegalArgumentException("Success must have a value in the
constructor");
- }
-
- /**
- * Constructor with a value to set.
- * @param val the value to set
- */
- public Success(final T val) {
- this.value = val;
- }
-
- @Override
- public final boolean isSuccess() {
- return true;
- }
-
- @Override
- public final T getValue() {
- return value;
- }
-
- @Override
- public String toString() {
- return "Success(" + ((value != null) ? value.toString() : "null") +
")";
- }
-
- @Override
- public int hashCode() {
- final int prime = 31;
- int result = 1;
- result = prime * result + ((value == null) ? 0 : value.hashCode());
- return result;
- }
-
- @SuppressWarnings("rawtypes")
- @Override
- public boolean equals(Object obj) {
- if (this == obj) {
- return true;
- }
- if (obj == null) {
- return false;
- }
- if (!(obj instanceof Success)) {
- return false;
- }
- Success other = (Success) obj;
- if (value == null) {
- if (other.value != null) {
- return false;
- }
- } else if (!value.equals(other.value)) {
- return false;
- }
- return true;
- }
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.functional.monad;
+
+/**
+ * Generic container, to hold the successful result of a computation.
+ */
+public class Success<T> extends Try<T> {
+ protected final T value;
+
+ /**
+ * Default constructor, do not use because it will throw an exception.
+ */
+ public Success() {
+ throw new IllegalArgumentException("Success must have a value in the
constructor");
+ }
+
+ /**
+ * Constructor with a value to set.
+ * @param val the value to set
+ */
+ public Success(final T val) {
+ this.value = val;
+ }
+
+ @Override
+ public final boolean isSuccess() {
+ return true;
+ }
+
+ @Override
+ public final T getValue() {
+ return value;
+ }
+
+ @Override
+ public String toString() {
+ return "Success(" + ((value != null) ? value.toString() : "null") +
")";
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result + ((value == null) ? 0 : value.hashCode());
+ return result;
+ }
+
+ @SuppressWarnings("rawtypes")
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj == null) {
+ return false;
+ }
+ if (!(obj instanceof Success)) {
+ return false;
+ }
+ Success other = (Success) obj;
+ if (value == null) {
+ if (other.value != null) {
+ return false;
+ }
+ } else if (!value.equals(other.value)) {
+ return false;
+ }
+ return true;
+ }
+
+}
Propchange: pivot/trunk/core/src/org/apache/pivot/functional/monad/Success.java
------------------------------------------------------------------------------
svn:eol-style = native
Modified: pivot/trunk/core/src/org/apache/pivot/functional/monad/Try.java
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/monad/Try.java?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/functional/monad/Try.java (original)
+++ pivot/trunk/core/src/org/apache/pivot/functional/monad/Try.java Tue Oct 31
19:15:47 2023
@@ -1,100 +1,100 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.pivot.functional.monad;
-
-import java.util.Iterator;
-import org.apache.pivot.annotations.UnsupportedOperation;
-
-/**
- * Definition of a generic Monad.
- */
-public abstract class Try<T> extends Monad<T> implements Iterable<T> {
-
- /** Default constructor. */
- protected Try() {
- // no-op
- }
-
- /**
- * Tell if it contains a successful value.
- * @return true if it is s Success, otherwise false (it's a Failure)
- */
- public abstract boolean isSuccess();
-
- /**
- * Return the value contained.
- * @return the value (if set)
- */
- public abstract T getValue();
-
- /**
- * Return the value contained in the Try if it is a successful value, or
an alternative value.
- * @param alternativeValue the value to return as alternative
- * @return value if it is a successful value, otherwise alternativeValue
- */
- public T getValueOrElse(final T alternativeValue) {
- return isSuccess() ? getValue() : alternativeValue;
- }
-
- /**
- * Return the value contained in the Try, or null if it hasn't a value set.
- * @return value if it is a successful value, otherwise null
- */
- public T getValueOrNull() {
- return getValueOrElse(null);
- }
-
- @Override
- public String toString() {
- return "Try()";
- }
-
- /**
- * Return an Iterator.
- * @see java.lang.Iterable#iterator()
- */
- @Override
- public Iterator<T> iterator() {
- return new TryIterator();
- }
-
-
- /**
- * Immutable iterator on the value contained in the Try (if any).
- */
- private class TryIterator implements Iterator<T> {
- private int cursor = 0;
-
- @Override
- public boolean hasNext() {
- return (isSuccess() && cursor == 0);
- }
-
- @Override
- public T next() {
- cursor++;
- return getValue();
- }
-
- @Override
- @UnsupportedOperation
- public void remove() {
- throw new UnsupportedOperationException();
- }
- }
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.functional.monad;
+
+import java.util.Iterator;
+import org.apache.pivot.annotations.UnsupportedOperation;
+
+/**
+ * Definition of a generic Monad.
+ */
+public abstract class Try<T> extends Monad<T> implements Iterable<T> {
+
+ /** Default constructor. */
+ protected Try() {
+ // no-op
+ }
+
+ /**
+ * Tell if it contains a successful value.
+ * @return true if it is s Success, otherwise false (it's a Failure)
+ */
+ public abstract boolean isSuccess();
+
+ /**
+ * Return the value contained.
+ * @return the value (if set)
+ */
+ public abstract T getValue();
+
+ /**
+ * Return the value contained in the Try if it is a successful value, or
an alternative value.
+ * @param alternativeValue the value to return as alternative
+ * @return value if it is a successful value, otherwise alternativeValue
+ */
+ public T getValueOrElse(final T alternativeValue) {
+ return isSuccess() ? getValue() : alternativeValue;
+ }
+
+ /**
+ * Return the value contained in the Try, or null if it hasn't a value set.
+ * @return value if it is a successful value, otherwise null
+ */
+ public T getValueOrNull() {
+ return getValueOrElse(null);
+ }
+
+ @Override
+ public String toString() {
+ return "Try()";
+ }
+
+ /**
+ * Return an Iterator.
+ * @see java.lang.Iterable#iterator()
+ */
+ @Override
+ public Iterator<T> iterator() {
+ return new TryIterator();
+ }
+
+
+ /**
+ * Immutable iterator on the value contained in the Try (if any).
+ */
+ private class TryIterator implements Iterator<T> {
+ private int cursor = 0;
+
+ @Override
+ public boolean hasNext() {
+ return (isSuccess() && cursor == 0);
+ }
+
+ @Override
+ public T next() {
+ cursor++;
+ return getValue();
+ }
+
+ @Override
+ @UnsupportedOperation
+ public void remove() {
+ throw new UnsupportedOperationException();
+ }
+ }
+
+}
Propchange: pivot/trunk/core/src/org/apache/pivot/functional/monad/Try.java
------------------------------------------------------------------------------
svn:eol-style = native
Modified:
pivot/trunk/core/src/org/apache/pivot/functional/monad/TryCompanion.java
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/monad/TryCompanion.java?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/functional/monad/TryCompanion.java
(original)
+++ pivot/trunk/core/src/org/apache/pivot/functional/monad/TryCompanion.java
Tue Oct 31 19:15:47 2023
@@ -1,129 +1,129 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.pivot.functional.monad;
-
-import java.util.Objects;
-
-/**
- * Utility class for additional Try methods.
- *
- * @param <T> The value type for this Try (on success).
- */
-@SuppressWarnings({"unchecked", "rawtypes"})
-public final class TryCompanion<T> {
- /**
- * The singleton (static) instance.
- */
- private static final TryCompanion INSTANCE = new TryCompanion<>();
-
- /**
- * Get the static instance.
- * @param <T> The type of this companion object.
- * @return the static instance
- */
- public static <T> TryCompanion<T> getInstance() {
- return INSTANCE;
- }
-
- /**
- * Default constructor, not usable from outside.
- */
- private TryCompanion() {
- // no-op
- }
-
-
- /**
- * Utility method to say if the given argument is a Try.
- *
- * @param val the value to test
- * @return true if it's a Try, false otherwise
- */
- public boolean isTry(final T val) {
- return val instanceof Try;
- }
-
- /**
- * Utility method to build a Try instance, depending on the value given.
- * @param val the value to set
- * @return Success(val) or Failure(val), depending on the type of the
given value
- */
- @SuppressWarnings("unchecked")
- public Try<T> fromValue(final Object val) {
- try {
- // return new Success(val);
- if (val == null || !(val instanceof RuntimeException)) {
- return new Success(val);
- }
-
- return new Failure((RuntimeException) val);
- } catch (RuntimeException re) {
- return new Failure<>(re);
- }
- }
-
- /**
- * Utility method to return the value contained.
- * @param t the try instance
- * @return the Success instance containing the value, or the Failure
instance containing the exception
- */
- public T toValue(final Try<T> t) {
- Objects.requireNonNull(t);
- return t.getValue();
- }
-
- /**
- * Utility method to return the value contained,
- * or an alternate value if not present.
- * @param t the Try
- * @param alternativeValue the alternative value (null could be used here)
- * @return value if set, otherwise alternativeValue
- */
- public T toValueOrElse(final Try<T> t, final T alternativeValue) {
- Objects.requireNonNull(t);
- return t.getValueOrElse(alternativeValue);
- }
-
- /**
- * Utility method that tell if the given Try has nested Try instances.
- * @param t the Try to test
- * @return true if it contains at least one nested Try, otherwise false
- */
- public boolean hasNestedOptions(final Try<T> t) {
- Objects.requireNonNull(t);
-
- if (t instanceof Failure) {
- return false;
- }
-
- return t.getValue() instanceof Try;
- }
-
- /**
- * Utility method to return the value contained in the Try, in a Option
instance.
- * @param t the Try
- * @return an Option instance: Some(value) if success, None otherwise
- */
- @SuppressWarnings("unchecked")
- public Option<T> toOption(final Try<T> t) {
- Objects.requireNonNull(t);
- if (t.isSuccess()) {
- return (Option<T>)
OptionCompanion.getInstance().fromValue(t.getValue());
- }
- return None.getInstance();
- }
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.functional.monad;
+
+import java.util.Objects;
+
+/**
+ * Utility class for additional Try methods.
+ *
+ * @param <T> The value type for this Try (on success).
+ */
+@SuppressWarnings({"unchecked", "rawtypes"})
+public final class TryCompanion<T> {
+ /**
+ * The singleton (static) instance.
+ */
+ private static final TryCompanion INSTANCE = new TryCompanion<>();
+
+ /**
+ * Get the static instance.
+ * @param <T> The type of this companion object.
+ * @return the static instance
+ */
+ public static <T> TryCompanion<T> getInstance() {
+ return INSTANCE;
+ }
+
+ /**
+ * Default constructor, not usable from outside.
+ */
+ private TryCompanion() {
+ // no-op
+ }
+
+
+ /**
+ * Utility method to say if the given argument is a Try.
+ *
+ * @param val the value to test
+ * @return true if it's a Try, false otherwise
+ */
+ public boolean isTry(final T val) {
+ return val instanceof Try;
+ }
+
+ /**
+ * Utility method to build a Try instance, depending on the value given.
+ * @param val the value to set
+ * @return Success(val) or Failure(val), depending on the type of the
given value
+ */
+ @SuppressWarnings("unchecked")
+ public Try<T> fromValue(final Object val) {
+ try {
+ // return new Success(val);
+ if (val == null || !(val instanceof RuntimeException)) {
+ return new Success(val);
+ }
+
+ return new Failure((RuntimeException) val);
+ } catch (RuntimeException re) {
+ return new Failure<>(re);
+ }
+ }
+
+ /**
+ * Utility method to return the value contained.
+ * @param t the try instance
+ * @return the Success instance containing the value, or the Failure
instance containing the exception
+ */
+ public T toValue(final Try<T> t) {
+ Objects.requireNonNull(t);
+ return t.getValue();
+ }
+
+ /**
+ * Utility method to return the value contained,
+ * or an alternate value if not present.
+ * @param t the Try
+ * @param alternativeValue the alternative value (null could be used here)
+ * @return value if set, otherwise alternativeValue
+ */
+ public T toValueOrElse(final Try<T> t, final T alternativeValue) {
+ Objects.requireNonNull(t);
+ return t.getValueOrElse(alternativeValue);
+ }
+
+ /**
+ * Utility method that tell if the given Try has nested Try instances.
+ * @param t the Try to test
+ * @return true if it contains at least one nested Try, otherwise false
+ */
+ public boolean hasNestedOptions(final Try<T> t) {
+ Objects.requireNonNull(t);
+
+ if (t instanceof Failure) {
+ return false;
+ }
+
+ return t.getValue() instanceof Try;
+ }
+
+ /**
+ * Utility method to return the value contained in the Try, in a Option
instance.
+ * @param t the Try
+ * @return an Option instance: Some(value) if success, None otherwise
+ */
+ @SuppressWarnings("unchecked")
+ public Option<T> toOption(final Try<T> t) {
+ Objects.requireNonNull(t);
+ if (t.isSuccess()) {
+ return (Option<T>)
OptionCompanion.getInstance().fromValue(t.getValue());
+ }
+ return None.getInstance();
+ }
+}
Propchange:
pivot/trunk/core/src/org/apache/pivot/functional/monad/TryCompanion.java
------------------------------------------------------------------------------
svn:eol-style = native
Modified: pivot/trunk/core/src/org/apache/pivot/functional/monad/package.html
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/monad/package.html?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/functional/monad/package.html
(original)
+++ pivot/trunk/core/src/org/apache/pivot/functional/monad/package.html Tue Oct
31 19:15:47 2023
@@ -1,23 +1,23 @@
-<!--
-Licensed to the Apache Software Foundation (ASF) under one or more
-contributor license agreements. See the NOTICE file distributed with
-this work for additional information regarding copyright ownership.
-The ASF licenses this file to you under the Apache License,
-Version 2.0 (the "License"); you may not use this file except in
-compliance with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
--->
-
-<html>
-<head></head>
-<body>
-<p>Contains a set of classes for implementing Monads (see FP).</p>
-</body>
-</html>
+<!--
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements. See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to you under the Apache License,
+Version 2.0 (the "License"); you may not use this file except in
+compliance with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+<html>
+<head></head>
+<body>
+<p>Contains a set of classes for implementing Monads (see FP).</p>
+</body>
+</html>
Propchange: pivot/trunk/core/src/org/apache/pivot/functional/monad/package.html
------------------------------------------------------------------------------
svn:eol-style = native
Modified: pivot/trunk/core/src/org/apache/pivot/functional/package.html
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/functional/package.html?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/functional/package.html (original)
+++ pivot/trunk/core/src/org/apache/pivot/functional/package.html Tue Oct 31
19:15:47 2023
@@ -1,23 +1,23 @@
-<!--
-Licensed to the Apache Software Foundation (ASF) under one or more
-contributor license agreements. See the NOTICE file distributed with
-this work for additional information regarding copyright ownership.
-The ASF licenses this file to you under the Apache License,
-Version 2.0 (the "License"); you may not use this file except in
-compliance with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
--->
-
-<html>
-<head></head>
-<body>
-<p>Contains a set of classes for typical usage in Functional programming
(FP).</p>
-</body>
-</html>
+<!--
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements. See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to you under the Apache License,
+Version 2.0 (the "License"); you may not use this file except in
+compliance with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+<html>
+<head></head>
+<body>
+<p>Contains a set of classes for typical usage in Functional programming
(FP).</p>
+</body>
+</html>
Propchange: pivot/trunk/core/src/org/apache/pivot/functional/package.html
------------------------------------------------------------------------------
svn:eol-style = native
Modified: pivot/trunk/core/src/org/apache/pivot/io/FileObjectList.java
URL:
http://svn.apache.org/viewvc/pivot/trunk/core/src/org/apache/pivot/io/FileObjectList.java?rev=1913470&r1=1913469&r2=1913470&view=diff
==============================================================================
--- pivot/trunk/core/src/org/apache/pivot/io/FileObjectList.java (original)
+++ pivot/trunk/core/src/org/apache/pivot/io/FileObjectList.java Tue Oct 31
19:15:47 2023
@@ -1,85 +1,85 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.pivot.io;
-
-import java.io.Serializable;
-import java.util.Comparator;
-
-import org.apache.commons.vfs2.FileObject;
-import org.apache.pivot.annotations.UnsupportedOperation;
-import org.apache.pivot.collections.adapter.ListAdapter;
-
-/**
- * Collection representing a list of files. Each entry in the list is unique;
- * i.e. a single file can't be added to the list more than once.
- */
-public class FileObjectList extends ListAdapter<FileObject> {
- private static final long serialVersionUID = 1327073299912864048L;
-
- private static class FilePathComparator implements Comparator<FileObject>,
Serializable {
- private static final long serialVersionUID = -4470959470309721902L;
-
- @Override
- public int compare(FileObject file1, FileObject file2) {
- String path1 = file1.getName().getPath();
- String path2 = file2.getName().getPath();
-
- return path1.compareTo(path2);
- }
- }
-
- private static final FilePathComparator FILE_PATH_COMPARATOR = new
FilePathComparator();
-
- public FileObjectList() {
- this(new java.util.ArrayList<FileObject>());
- }
-
- public FileObjectList(java.util.List<FileObject> files) {
- super(files);
-
- super.setComparator(FILE_PATH_COMPARATOR);
- }
-
- @Override
- public int add(FileObject file) {
- int index = indexOf(file);
-
- if (index == -1) {
- index = super.add(file);
- }
-
- return index;
- }
-
- @Override
- @UnsupportedOperation
- public void insert(FileObject file, int index) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- @UnsupportedOperation
- public FileObject update(int index, FileObject file) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- @UnsupportedOperation
- public void setComparator(Comparator<FileObject> comparator) {
- throw new UnsupportedOperationException();
- }
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.io;
+
+import java.io.Serializable;
+import java.util.Comparator;
+
+import org.apache.commons.vfs2.FileObject;
+import org.apache.pivot.annotations.UnsupportedOperation;
+import org.apache.pivot.collections.adapter.ListAdapter;
+
+/**
+ * Collection representing a list of files. Each entry in the list is unique;
+ * i.e. a single file can't be added to the list more than once.
+ */
+public class FileObjectList extends ListAdapter<FileObject> {
+ private static final long serialVersionUID = 1327073299912864048L;
+
+ private static class FilePathComparator implements Comparator<FileObject>,
Serializable {
+ private static final long serialVersionUID = -4470959470309721902L;
+
+ @Override
+ public int compare(FileObject file1, FileObject file2) {
+ String path1 = file1.getName().getPath();
+ String path2 = file2.getName().getPath();
+
+ return path1.compareTo(path2);
+ }
+ }
+
+ private static final FilePathComparator FILE_PATH_COMPARATOR = new
FilePathComparator();
+
+ public FileObjectList() {
+ this(new java.util.ArrayList<FileObject>());
+ }
+
+ public FileObjectList(java.util.List<FileObject> files) {
+ super(files);
+
+ super.setComparator(FILE_PATH_COMPARATOR);
+ }
+
+ @Override
+ public int add(FileObject file) {
+ int index = indexOf(file);
+
+ if (index == -1) {
+ index = super.add(file);
+ }
+
+ return index;
+ }
+
+ @Override
+ @UnsupportedOperation
+ public void insert(FileObject file, int index) {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ @UnsupportedOperation
+ public FileObject update(int index, FileObject file) {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ @UnsupportedOperation
+ public void setComparator(Comparator<FileObject> comparator) {
+ throw new UnsupportedOperationException();
+ }
+}
Propchange: pivot/trunk/core/src/org/apache/pivot/io/FileObjectList.java
------------------------------------------------------------------------------
svn:eol-style = native
