/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.pig.impl.logicalLayer;
import org.apache.pig.impl.plan.OperatorKey;
import org.apache.pig.impl.plan.PlanVisitor;
import org.apache.pig.impl.plan.VisitorException;
import org.apache.pig.impl.logicalLayer.schema.Schema;
import org.apache.pig.data.DataType;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class LOLesserThanEqual extends BinaryExpressionOperator {
private static final long serialVersionUID = 2L;
private static Log log = LogFactory.getLog(LOLesserThanEqual.class);
/**
*
* @param plan
* Logical plan this operator is a part of.
* @param k
* Operator key to assign to this node.
*/
public LOLesserThanEqual(LogicalPlan plan, OperatorKey k) {
super(plan, k);
}
@Override
public Schema getSchema() {
return mSchema;
}
@Override
public Schema.FieldSchema getFieldSchema() throws FrontendException {
if(!mIsFieldSchemaComputed) {
mFieldSchema = new Schema.FieldSchema(null, DataType.BOOLEAN);
mFieldSchema.setParent(getLhsOperand().getFieldSchema().canonicalName, getLhsOperand());
mFieldSchema.setParent(getRhsOperand().getFieldSchema().canonicalName, getRhsOperand());
mIsFieldSchemaComputed = true;
}
return mFieldSchema;
}
@Override
public void visit(LOVisitor v) throws VisitorException {
v.visit(this);
}
@Override
public String name() {
return "LesserThanEqual " + mKey.scope + "-" + mKey.id;
}
}