parquet.column.values.boundedint.ZeroIntegerValuesReader Maven / Gradle / Ivy
/**
* Copyright 2012 Twitter, Inc.
*
* Licensed 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 parquet.column.values.boundedint;
import java.io.IOException;
import parquet.column.values.ValuesReader;
/**
* ColumnReader which does not read any actual data, but rather simply produces
* an endless stream of constant values.
* Mainly used to read definition levels when the only possible value is 0
*/
public class ZeroIntegerValuesReader extends ValuesReader {
public int readInteger() {
return 0;
}
@Override
public int initFromPage(long valueCount, byte[] in, int offset) throws IOException {
return offset;
}
@Override
public void skip() {
}
}