org.apache.pig.newplan.logical.relational.LOSplit Maven / Gradle / Ivy
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* 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,
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* See the License for the specific language governing permissions and
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*/
package org.apache.pig.newplan.logical.relational;
import org.apache.pig.impl.logicalLayer.FrontendException;
import org.apache.pig.newplan.Operator;
import org.apache.pig.newplan.OperatorPlan;
import org.apache.pig.newplan.PlanVisitor;
public class LOSplit extends LogicalRelationalOperator {
public LOSplit(OperatorPlan plan) {
super("LOSplit", plan);
}
@Override
public LogicalSchema getSchema() throws FrontendException {
if (schema!=null)
return schema;
LogicalRelationalOperator input = null;
input = (LogicalRelationalOperator)plan.getPredecessors(this).get(0);
schema = input.getSchema();
return schema;
}
@Override
public void accept(PlanVisitor v) throws FrontendException {
if (!(v instanceof LogicalRelationalNodesVisitor)) {
throw new FrontendException("Expected LogicalPlanVisitor", 2223);
}
((LogicalRelationalNodesVisitor)v).visit(this);
}
@Override
public boolean isEqual(Operator other) throws FrontendException {
if (other != null && other instanceof LOSplit) {
return checkEquality((LOSplit)other);
} else {
return false;
}
}
}