/**
* 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.hadoop.hive.ql.udf.generic;
/**
* Base class for binary operators, overrides getDisplayString()
*
*/
public abstract class GenericUDFBaseBinary extends GenericUDF {
protected String opName = getClass().getSimpleName();
protected String opDisplayName; // should be set by child class
@Override
public String getDisplayString(String[] children) {
assert (children.length == 2);
return "(" + children[0] + " " + opDisplayName + " " + children[1] + ")";
}
}