/*
* Copyright 2010 NCHOVY
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.krakenapps.sqlparser.parser;
import org.krakenapps.bnf.Binding;
import org.krakenapps.bnf.Parser;
import org.krakenapps.sqlparser.ast.ComparisonOperator;
import org.krakenapps.sqlparser.ast.ComparisonPredicate;
import org.krakenapps.sqlparser.ast.ValueExpression;
public class ComparisonPredicateParser implements Parser {
@Override
public Object parse(Binding b) {
Binding[] children = b.getChildren();
ValueExpression lhs = (ValueExpression) children[0].getValue();
String operator = (String) children[1].getValue();
ComparisonOperator op = ComparisonOperator.parse(operator);
ValueExpression rhs = (ValueExpression) children[2].getValue();
return new ComparisonPredicate(lhs, op, rhs);
}
}