/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.xcmis.search.model.operand;
import org.xcmis.search.QueryObjectModelVisitor;
import org.xcmis.search.VisitException;
import org.xcmis.search.Visitors;
import org.xcmis.search.model.constraint.Comparison;
/**
* A literal value used in a {@link Comparison} constraint.
*/
public class Literal extends StaticOperand
{
private static final long serialVersionUID = 1L;
private final Object value;
public Literal(Object value)
{
this.value = value;
}
/**
* @see org.xcmis.search.model.QueryElement#accept(org.xcmis.search.QueryObjectModelVisitor)
*/
public void accept(QueryObjectModelVisitor visitor) throws VisitException
{
visitor.visit(this);
}
/**
* {@inheritDoc}
*
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj)
{
if (obj == this)
{
return true;
}
if (obj instanceof Literal)
{
Literal that = (Literal)obj;
return this.value.equals(that.value) || this.value.toString().equals(that.value.toString());
}
return false;
}
/**
* @return value
*/
public final Object getValue()
{
return value;
}
/**
* {@inheritDoc}
*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode()
{
return getValue().hashCode();
}
/**
* {@inheritDoc}
*
* @see java.lang.Object#toString()
*/
@Override
public String toString()
{
return Visitors.readable(this);
}
}