Updated Branches: refs/heads/branch-0.8 dfc62e294 -> 64fae16ec
add Function3 and WrappedFunction3 Project: http://git-wip-us.apache.org/repos/asf/incubator-spark/repo Commit: http://git-wip-us.apache.org/repos/asf/incubator-spark/commit/a7d0f2ff Tree: http://git-wip-us.apache.org/repos/asf/incubator-spark/tree/a7d0f2ff Diff: http://git-wip-us.apache.org/repos/asf/incubator-spark/diff/a7d0f2ff Branch: refs/heads/branch-0.8 Commit: a7d0f2ff14ed7608cba5a80a84e17b97a965598d Parents: f930dd4 Author: Xi Liu <x...@conviva.com> Authored: Wed Oct 9 12:26:10 2013 -0700 Committer: Xi Liu <x...@conviva.com> Committed: Wed Oct 9 12:26:10 2013 -0700 ---------------------------------------------------------------------- .../spark/api/java/function/Function3.java | 38 ++++++++++++++++++++ .../api/java/function/WrappedFunction3.scala | 32 +++++++++++++++++ 2 files changed, 70 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/incubator-spark/blob/a7d0f2ff/core/src/main/scala/org/apache/spark/api/java/function/Function3.java ---------------------------------------------------------------------- diff --git a/core/src/main/scala/org/apache/spark/api/java/function/Function3.java b/core/src/main/scala/org/apache/spark/api/java/function/Function3.java new file mode 100644 index 0000000..6c1ce4c --- /dev/null +++ b/core/src/main/scala/org/apache/spark/api/java/function/Function3.java @@ -0,0 +1,38 @@ +/* + * 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.spark.api.java.function; + +import scala.reflect.ClassManifest; +import scala.reflect.ClassManifest$; +import scala.runtime.AbstractFunction3; + +import java.io.Serializable; + +/** + * A three-argument function that takes arguments of type T1, T2, and T3 and returns an R. + */ +public abstract class Function3<T1, T2, T3, R> extends WrappedFunction3<T1, T2, T3, R> + implements Serializable { + + public abstract R call(T1 t1, T2 t2, T3 t3) throws Exception; + + public ClassManifest<R> returnType() { + return (ClassManifest<R>) ClassManifest$.MODULE$.fromClass(Object.class); + } +} + http://git-wip-us.apache.org/repos/asf/incubator-spark/blob/a7d0f2ff/core/src/main/scala/org/apache/spark/api/java/function/WrappedFunction3.scala ---------------------------------------------------------------------- diff --git a/core/src/main/scala/org/apache/spark/api/java/function/WrappedFunction3.scala b/core/src/main/scala/org/apache/spark/api/java/function/WrappedFunction3.scala new file mode 100644 index 0000000..f8c2b6c --- /dev/null +++ b/core/src/main/scala/org/apache/spark/api/java/function/WrappedFunction3.scala @@ -0,0 +1,32 @@ +/* + * 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.spark.api.java.function + +import scala.runtime.AbstractFunction3 + +/** + * Subclass of Function3 for ease of calling from Java. The main thing it does is re-expose the + * apply() method as call() and declare that it can throw Exception (since AbstractFunction3.apply + * isn't marked to allow that). + */ +private[spark] abstract class WrappedFunction3[T1, T2, T3, R] extends AbstractFunction3[T1, T2, T3, R] { + @throws(classOf[Exception]) + def call(t1: T1, t2: T2, t3: T3): R + + final def apply(t1: T1, t2: T2, t3: T3): R = call(t1, t2, t3) +}
