Author: simonetripodi
Date: Sun Jan 30 20:14:00 2011
New Revision: 1065366
URL: http://svn.apache.org/viewvc?rev=1065366&view=rev
Log:
first checkin of ObjectParamRule class, a simplified and tidy version of the
proper one on /trunk
Added:
commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/ObjectParamRule.java
(with props)
Added:
commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/ObjectParamRule.java
URL:
http://svn.apache.org/viewvc/commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/ObjectParamRule.java?rev=1065366&view=auto
==============================================================================
---
commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/ObjectParamRule.java
(added)
+++
commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/ObjectParamRule.java
Sun Jan 30 20:14:00 2011
@@ -0,0 +1,99 @@
+/* $Id$
+ *
+ * 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.commons.digester3;
+
+import org.xml.sax.Attributes;
+
+/**
+ * <p>Rule implementation that saves a parameter for use by a surrounding
+ * <code>CallMethodRule<code>.</p>
+ *
+ * <p>This parameter may be:
+ * <ul>
+ * <li>an arbitrary Object defined programatically, assigned when the element
+ * pattern associated with the Rule is matched. See
+ * {@link #ObjectParamRule(int paramIndex, Object param)}.
+ * <li>an arbitrary Object defined programatically, assigned if the element
+ * pattern AND specified attribute name are matched. See
+ * {@link #ObjectParamRule(int paramIndex, String attributeName, Object
param)}.
+ * </ul>
+ * </p>
+ */
+public class ObjectParamRule extends Rule {
+
+ /**
+ * The attribute which we are attempting to match
+ */
+ private final String attributeName;
+
+ /**
+ * The zero-relative index of the parameter we are saving.
+ */
+ private final int paramIndex;
+
+ /**
+ * The parameter we wish to pass to the method call
+ */
+ private final Object param;
+
+ /**
+ * Construct a "call parameter" rule that will save the given Object as
+ * the parameter value, provided that the specified attribute exists.
+ *
+ * @param paramIndex The zero-relative parameter number
+ * @param attributeName The name of the attribute to match
+ * @param param the parameter to pass along
+ */
+ public ObjectParamRule(int paramIndex, String attributeName, Object param)
{
+ this.paramIndex = paramIndex;
+ this.attributeName = attributeName;
+ this.param = param;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void begin(String namespace, String name, Attributes attributes)
throws Exception {
+ Object anAttribute = null;
+ Object parameters[] = (Object[]) this.getDigester().peekParams();
+
+ if (this.attributeName != null) {
+ anAttribute = attributes.getValue(attributeName);
+ if (anAttribute != null) {
+ parameters[paramIndex] = param;
+ }
+ // note -- if attributeName != null and anAttribute == null, this
rule
+ // will pass null as its parameter!
+ } else{
+ parameters[paramIndex] = param;
+ }
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public String toString() {
+ return String.format("ObjectParamRule[paramIndex=%s, attributeName=%s,
param=%s]",
+ this.paramIndex,
+ this.attributeName,
+ this.param);
+ }
+
+}
Propchange:
commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/ObjectParamRule.java
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commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/ObjectParamRule.java
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commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/ObjectParamRule.java
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