/*
* 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.apache.commons.lang.Validate;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.xcmis.search.QueryObjectModelVisitor;
import org.xcmis.search.VisitException;
import org.xcmis.search.Visitors;
import org.xcmis.search.model.constraint.Comparison;
/**
* A value bound to a variable name used in a {@link Comparison} constraint.
*/
public class BindVariableName extends StaticOperand
{
private static final long serialVersionUID = 1L;
private final String variableName;
private final int hcode;
public BindVariableName(String variableName)
{
Validate.notNull(variableName, "The variableName argument may not be null");
this.variableName = variableName;
this.hcode = new HashCodeBuilder()
.append(variableName)
.toHashCode();
}
/**
* @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 BindVariableName)
{
BindVariableName that = (BindVariableName)obj;
return this.variableName.equals(that.variableName);
}
return false;
}
/**
* @return variableName
*/
public final String getVariableName()
{
return variableName;
}
/**
* {@inheritDoc}
*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode()
{
return variableName.hashCode();
}
/**
* {@inheritDoc}
*
* @see java.lang.Object#toString()
*/
@Override
public String toString()
{
return Visitors.readable(this);
}
}