org.apache.pig.impl.logicalLayer.LODefine Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of pig Show documentation

There is a newer version: 0.17.0

/*
 * 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.logicalLayer.schema.Schema;

public class LODefine extends LogicalOperator {
    private static final long serialVersionUID = 1L;

    public LODefine(LogicalPlan plan, OperatorKey key){
        super(plan, key);
    }

    public Schema getSchema() throws FrontendException {
        return null;
    }
    
    public void visit(LOVisitor v) {}

    public String name() {
        return "Define " + mKey.scope + "-" + mKey.id;
    }

    public boolean supportsMultipleInputs(){
        return false;
    }

}