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/*
 * Copyright 2011-2015 PrimeFaces Extensions
 *
 * 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.
 *
 * $Id$
 */

package org.primefaces.extensions.util;

import javax.el.ELContext;
import javax.el.ValueExpression;

/**
 * Dummy {@link ValueExpression} which just provides the type.
 *
 * @author Thomas Andraschko / last modified by $Author$
 * @version $Revision$
 * @since 0.5
 */
@SuppressWarnings("serial")
public class DummyValueExpression extends ValueExpression {

	private Class type;

	public DummyValueExpression(final Class type) {
		this.type = type;
	}

	@Override
	public Class getExpectedType() {
		return null;
	}

	@Override
	public Class getType(final ELContext context) {
		return type;
	}

	@Override
	public Object getValue(final ELContext context) {
		return null;
	}

	@Override
	public boolean isReadOnly(final ELContext context) {
		return false;
	}

	@Override
	public void setValue(final ELContext context, final Object value) {
	}

	@Override
	public boolean equals(final Object obj) {
		return false;
	}

	@Override
	public String getExpressionString() {
		return null;
	}

	@Override
	public int hashCode() {
		return 0;
	}

	@Override
	public boolean isLiteralText() {
		return false;
	}
}