/*
* $Id: IterateTei.java 471754 2006-11-06 14:55:09Z husted $
*
* 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.struts.taglib.logic;
import javax.servlet.jsp.tagext.TagData;
import javax.servlet.jsp.tagext.TagExtraInfo;
import javax.servlet.jsp.tagext.VariableInfo;
/**
* Implementation of <code>TagExtraInfo</code> for the <b>iterate</b> tag,
* identifying the scripting object(s) to be made visible.
*
* @version $Rev: 471754 $ $Date: 2004-10-16 12:38:42 -0400 (Sat, 16 Oct 2004)
* $
*/
public class IterateTei extends TagExtraInfo {
/**
* Return information about the scripting variables to be created.
*/
public VariableInfo[] getVariableInfo(TagData data) {
// prime this array with the maximum potential variables.
// will be arraycopy'd out to the final array based on results.
VariableInfo[] variables = new VariableInfo[2];
// counter for matched results.
int counter = 0;
/* id : object of the current iteration */
String id = data.getAttributeString("id");
String type = data.getAttributeString("type");
if (id != null) {
if (type == null) {
type = "java.lang.Object";
}
variables[counter++] =
new VariableInfo(data.getAttributeString("id"), type, true,
VariableInfo.NESTED);
}
/* indexId : number value of the current iteration */
String indexId = data.getAttributeString("indexId");
if (indexId != null) {
variables[counter++] =
new VariableInfo(indexId, "java.lang.Integer", true,
VariableInfo.NESTED);
}
/* create returning array, and copy results */
VariableInfo[] result;
if (counter > 0) {
result = new VariableInfo[counter];
System.arraycopy(variables, 0, result, 0, counter);
} else {
result = new VariableInfo[0];
}
return result;
}
}