/*
* 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.
*/
/* Generated By:JJTree: Do not edit this line. SimpleNode.java */
package org.apache.el.parser;
import javax.el.ELException;
import javax.el.MethodInfo;
import javax.el.PropertyNotWritableException;
import javax.el.ValueReference;
import org.apache.el.lang.ELSupport;
import org.apache.el.lang.EvaluationContext;
import org.apache.el.util.MessageFactory;
/**
* @author Jacob Hookom [jacob@hookom.net]
* @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: remy.maucherat@jboss.com $
*/
public abstract class SimpleNode extends ELSupport implements Node {
protected Node parent;
protected Node[] children;
protected int id;
protected String image;
public SimpleNode(int i) {
id = i;
}
public void jjtOpen() {
}
public void jjtClose() {
}
public void jjtSetParent(Node n) {
parent = n;
}
public Node jjtGetParent() {
return parent;
}
public void jjtAddChild(Node n, int i) {
if (children == null) {
children = new Node[i + 1];
} else if (i >= children.length) {
Node c[] = new Node[i + 1];
System.arraycopy(children, 0, c, 0, children.length);
children = c;
}
children[i] = n;
}
public Node jjtGetChild(int i) {
return children[i];
}
public int jjtGetNumChildren() {
return (children == null) ? 0 : children.length;
}
/*
* You can override these two methods in subclasses of SimpleNode to
* customize the way the node appears when the tree is dumped. If your
* output uses more than one line you should override toString(String),
* otherwise overriding toString() is probably all you need to do.
*/
public String toString() {
if (this.image != null) {
return ELParserTreeConstants.jjtNodeName[id] + "[" + this.image
+ "]";
}
return ELParserTreeConstants.jjtNodeName[id];
}
public String toString(String prefix) {
return prefix + toString();
}
/*
* Override this method if you want to customize how the node dumps out its
* children.
*/
public void dump(String prefix) {
System.out.println(toString(prefix));
if (children != null) {
for (int i = 0; i < children.length; ++i) {
SimpleNode n = (SimpleNode) children[i];
if (n != null) {
n.dump(prefix + " ");
}
}
}
}
public String getImage() {
return image;
}
public void setImage(String image) {
this.image = image;
}
public Class getType(EvaluationContext ctx)
throws ELException {
throw new UnsupportedOperationException();
}
public Object getValue(EvaluationContext ctx)
throws ELException {
throw new UnsupportedOperationException();
}
public ValueReference getValueReference(EvaluationContext ctx) {
return null;
}
public boolean isReadOnly(EvaluationContext ctx)
throws ELException {
return true;
}
public void setValue(EvaluationContext ctx, Object value)
throws ELException {
throw new PropertyNotWritableException(MessageFactory.get("error.syntax.set"));
}
public void accept(NodeVisitor visitor) throws Exception {
visitor.visit(this);
if (this.children != null && this.children.length > 0) {
for (int i = 0; i < this.children.length; i++) {
this.children[i].accept(visitor);
}
}
}
public Object invoke(EvaluationContext ctx, Class[] paramTypes, Object[] paramValues) throws ELException {
throw new UnsupportedOperationException();
}
public MethodInfo getMethodInfo(EvaluationContext ctx, Class[] paramTypes) throws ELException {
throw new UnsupportedOperationException();
}
public boolean isParametersProvided() {
return false;
}
}