/*
 * Copyright 1999-2004 The Apache Software Foundation
 *
 * 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.apache.commons.jxpath.ri;

import java.util.Iterator;

import org.apache.commons.jxpath.ri.compiler.Expression;
import org.apache.commons.jxpath.CompiledExpression;
import org.apache.commons.jxpath.JXPathContext;
import org.apache.commons.jxpath.Pointer;

/**
 *
 *
 * @author Dmitri Plotnikov
 * @version $Revision: 1.9 $ $Date: 2004/02/29 14:17:45 $
 */
public class JXPathCompiledExpression implements CompiledExpression {

    private String xpath;
    private Expression expression;

    public JXPathCompiledExpression(String xpath, Expression expression) {
        this.xpath = xpath;
        this.expression = expression;
    }

    protected String getXPath() {
        return xpath;
    }

    protected Expression getExpression() {
        return expression;
    }

    public String toString() {
        return xpath;
    }
    
    /**
     * @see CompiledExpression#getValue(JXPathContext)
     */
    public Object getValue(JXPathContext context) {
        return ((JXPathContextReferenceImpl) context).
                    getValue(xpath, expression);
    }

    /**
     * @see CompiledExpression#getValue(JXPathContext, Class)
     */
    public Object getValue(JXPathContext context, Class requiredType) {
        return ((JXPathContextReferenceImpl) context).
                    getValue(xpath, expression, requiredType);
    }

    /**
     * @see CompiledExpression#setValue(JXPathContext, Object)
     */
    public void setValue(JXPathContext context, Object value) {
        ((JXPathContextReferenceImpl) context).
                    setValue(xpath, expression, value);
    }

    /**
     * @see CompiledExpression#createPath(JXPathContext)
     */
    public Pointer createPath(JXPathContext context) {
        return ((JXPathContextReferenceImpl) context).
                    createPath(xpath, expression);
    }

    /**
     * @see CompiledExpression#createPathAndSetValue(JXPathContext, Object)
     */
    public Pointer createPathAndSetValue(JXPathContext context, Object value) {
        return ((JXPathContextReferenceImpl) context).
                    createPathAndSetValue(xpath, expression, value);
    }

    /**
     * @see CompiledExpression#iterate(JXPathContext)
     */
    public Iterator iterate(JXPathContext context) {
        return ((JXPathContextReferenceImpl) context).
                    iterate(xpath, expression);
    }

    /**
     * @see CompiledExpression#getPointer(JXPathContext, String)
     */
    public Pointer getPointer(JXPathContext context, String xpath) {
        return ((JXPathContextReferenceImpl) context).
                    getPointer(xpath, expression);
    }

    /**
     * @see CompiledExpression#iteratePointers(JXPathContext)
     */
    public Iterator iteratePointers(JXPathContext context) {
        return ((JXPathContextReferenceImpl) context).
                    iteratePointers(xpath, expression);
    }

    /**
     * @see CompiledExpression#removePath(JXPathContext)
     */
    public void removePath(JXPathContext context) {
        ((JXPathContextReferenceImpl) context).removePath(xpath, expression);
    }

    /**
     * @see CompiledExpression#removeAll(JXPathContext)
     */
    public void removeAll(JXPathContext context) {
        ((JXPathContextReferenceImpl) context).removeAll(xpath, expression);
    }
}