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A fork of MVEL by Axibase. Original version is hosted here: https://github.com/mvel/mvel.
MVEL is a powerful expression language for Java-based applications.
It provides a plethora of features and is suited for everything
from the smallest property binding and extraction, to full blown scripts.
/**
* MVEL 2.0
* Copyright (C) 2007 The Codehaus
* Mike Brock, Dhanji Prasanna, John Graham, Mark Proctor
*
* Licensed 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.mvel2.templates.res;
import org.mvel2.MVEL;
import org.mvel2.integration.VariableResolverFactory;
import org.mvel2.templates.TemplateRuntime;
import org.mvel2.templates.util.TemplateOutputStream;
import org.mvel2.util.ParseTools;
public class IfNode extends Node {
protected Node trueNode;
protected Node elseNode;
public IfNode(int begin, String name, char[] template, int start, int end) {
super(begin, name, template, start, end);
while (cEnd > cStart && ParseTools.isWhitespace(template[cEnd])) cEnd--;
}
public Node getTrueNode() {
return trueNode;
}
public void setTrueNode(ExpressionNode trueNode) {
this.trueNode = trueNode;
}
public Node getElseNode() {
return elseNode;
}
public void setElseNode(ExpressionNode elseNode) {
this.elseNode = elseNode;
}
public boolean demarcate(Node terminatingNode, char[] template) {
trueNode = next;
next = terminus;
return true;
}
public Object eval(TemplateRuntime runtime, TemplateOutputStream appender, Object ctx, VariableResolverFactory factory) {
if (cEnd == cStart || MVEL.eval(contents, cStart, cEnd - cStart, ctx, factory, Boolean.class)) {
return trueNode.eval(runtime, appender, ctx, factory);
}
return next != null ? next.eval(runtime, appender, ctx, factory) : null;
}
}
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