/**
* Copyright (C) 2009-2013 FoundationDB, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.foundationdb.sql.optimizer.plan;
import com.foundationdb.ais.model.Column;
import com.foundationdb.server.types.TInstance;
import com.foundationdb.sql.types.DataTypeDescriptor;
import com.foundationdb.sql.parser.ValueNode;
/** An operand with a parameter value. */
public class ColumnDefaultExpression extends BaseExpression
{
private Column column;
public ColumnDefaultExpression(Column column,
DataTypeDescriptor sqlType, ValueNode sqlSource,
TInstance type) {
super(sqlType, sqlSource, type);
this.column = column;
}
public Column getColumn() {
return column;
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof ColumnDefaultExpression)) return false;
ColumnDefaultExpression other = (ColumnDefaultExpression)obj;
return (column == other.column);
}
@Override
public int hashCode() {
return column.hashCode();
}
@Override
public boolean accept(ExpressionVisitor v) {
return v.visit(this);
}
@Override
public ExpressionNode accept(ExpressionRewriteVisitor v) {
return v.visit(this);
}
@Override
public String toString() {
return "DEFAULT(" + column + ")";
}
}