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/* WrongValuePropertyImpl.java

	Purpose:
		
	Description:
		
	History:
		2012/2/22 Created by Dennis Chen

Copyright (C) 2011 Potix Corporation. All Rights Reserved.
*/
package org.zkoss.bind.impl;

import java.io.Serializable;

import org.zkoss.bind.Property;
import org.zkoss.zk.ui.WrongValueException;
import org.zkoss.zk.ui.WrongValuesException;

/**
 * // ZK-878 Exception if binding a form with errorMessage
 * To handle wrong value exception when getting a component value.
 * @author dennis
 * @since 6.0.1
 */
public class WrongValuePropertyImpl implements Property, Serializable {
	private static final long serialVersionUID = 1463169907348730644L;
	private final Object _base;
	private final String _property;
	private final Object _wrongValueException;

	public WrongValuePropertyImpl(Object base, String property, Object wrongValueException) {
		_base = base;
		_property = property;
		if (!(wrongValueException instanceof WrongValueException
				|| wrongValueException instanceof WrongValuesException)) {
			throw new IllegalArgumentException("not a wrong value exception, is " + wrongValueException);
		}
		_wrongValueException = wrongValueException;
	}

	public Object getBase() {
		return _base;
	}

	public Object getValue() {
		return null;
	}

	public String getProperty() {
		return _property;
	}

	public WrongValueException[] getWrongValueExceptions() {
		if (_wrongValueException instanceof WrongValueException) {
			return new WrongValueException[] { (WrongValueException) _wrongValueException };
		} else if (_wrongValueException instanceof WrongValuesException) {
			return ((WrongValuesException) _wrongValueException).getWrongValueExceptions();
		}
		return null;
	}

	public String toString() {
		return new StringBuilder().append(getClass().getSimpleName()).append("@")
				.append(Integer.toHexString(hashCode())).append(",base:").append(getBase()).append(",property:")
				.append(getProperty()).append(",value:").append(getValue()).toString();
	}

	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((_base == null) ? 0 : _base.hashCode());
		result = prime * result + ((_property == null) ? 0 : _property.hashCode());
		result = prime * result + ((_wrongValueException == null) ? 0 : _wrongValueException.hashCode());
		return result;
	}

	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		WrongValuePropertyImpl other = (WrongValuePropertyImpl) obj;
		if (_base == null) {
			if (other._base != null)
				return false;
		} else if (!_base.equals(other._base))
			return false;
		if (_property == null) {
			if (other._property != null)
				return false;
		} else if (!_property.equals(other._property))
			return false;
		if (_wrongValueException == null) {
			if (other._wrongValueException != null)
				return false;
		} else if (!_wrongValueException.equals(other._wrongValueException))
			return false;
		return true;
	}

}