org.apache.el.parser.Node Maven / Gradle / Ivy
/* Generated By:JJTree: Do not edit this line. Node.java */
/*
* 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.el.parser;
import javax.el.ELException;
import javax.el.MethodInfo;
import javax.el.ValueReference;
import org.apache.el.lang.EvaluationContext;
/* All AST nodes must implement this interface. It provides basic
machinery for constructing the parent and child relationships
between nodes. */
/**
* @author Jacob Hookom [[email protected]]
* $Id: Node.java 898969 2010-01-13 22:10:49Z markt $
*/
public interface Node {
/** This method is called after the node has been made the current
node. It indicates that child nodes can now be added to it. */
public void jjtOpen();
/** This method is called after all the child nodes have been
added. */
public void jjtClose();
/** This pair of methods are used to inform the node of its
parent. */
public void jjtSetParent(Node n);
public Node jjtGetParent();
/** This method tells the node to add its argument to the node's
list of children. */
public void jjtAddChild(Node n, int i);
/** This method returns a child node. The children are numbered
from zero, left to right. */
public Node jjtGetChild(int i);
/** Return the number of children the node has. */
public int jjtGetNumChildren();
public String getImage();
public Object getValue(EvaluationContext ctx) throws ELException;
public void setValue(EvaluationContext ctx, Object value) throws ELException;
public Class getType(EvaluationContext ctx) throws ELException;
public boolean isReadOnly(EvaluationContext ctx) throws ELException;
public void accept(NodeVisitor visitor) throws Exception;
public MethodInfo getMethodInfo(EvaluationContext ctx, Class[] paramTypes)
throws ELException;
public Object invoke(EvaluationContext ctx, Class[] paramTypes,
Object[] paramValues) throws ELException;
/**
* @since EL 2.2
*/
public ValueReference getValueReference(EvaluationContext ctx);
/**
* @since EL 2.2
*/
public boolean isParametersProvided();
}