/**
* 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.drill.exec.expr;
import com.sun.codemodel.JBlock;
/**
* Uses this class to keep track # of Drill Logical Expressions that are
* put to JBlock.
*
* JBlock is final class; we could not extend JBlock directly.
*/
public class SizedJBlock {
private final JBlock block;
private int count; // # of Drill Logical Expressions added to this block
public SizedJBlock(JBlock block) {
this.block = block;
// Project, Filter and Aggregator receives JBlock, using ClassGenerator.addExpr() method,
// but the Copier is doing kind of short-cut handling, by accessing the eval() and setup() directly.
// To take into account JBlocks, that were filled in Copier, sets count to 1.
this.count = 1;
}
public JBlock getBlock() {
return this.block;
}
public void incCounter() {
this.count ++;
}
public int getCount() {
return this.count;
}
}