/*
Copyright 2013 Red Hat, Inc. and/or its affiliates.
This file is part of lightblue.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.redhat.lightblue.assoc;
import com.redhat.lightblue.query.Value;
/**
* An extension of value with fixed null value, but containing field query field
* info for the field. When a query is rewritten, all fields referenced in the
* query that belong to another entity are replaced with a BoundValue instance.
* When the actual value of the field is determined, the query is rewritten to
* replace the BoundValue with the actual value.
*/
public class BoundValue extends Value implements BoundObject {
private static final long serialVersionUID = 1L;
protected final QueryFieldInfo fieldInfo;
public BoundValue(QueryFieldInfo fieldInfo) {
super(null);
this.fieldInfo = fieldInfo;
}
@Override
public QueryFieldInfo getFieldInfo() {
return fieldInfo;
}
}