org.apache.parquet.column.impl.ColumnReaderImpl Maven / Gradle / Ivy
/*
* 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.parquet.column.impl;
import org.apache.parquet.VersionParser.ParsedVersion;
import org.apache.parquet.column.ColumnDescriptor;
import org.apache.parquet.column.page.DataPage;
import org.apache.parquet.column.page.PageReader;
import org.apache.parquet.io.api.PrimitiveConverter;
/**
* ColumnReader implementation for the scenario when column indexes are not used (all values are read)
*/
public class ColumnReaderImpl extends ColumnReaderBase {
/**
* creates a reader for triplets
*
* @param path
* the descriptor for the corresponding column
* @param pageReader
* the underlying store to read from
* @param converter
* a converter that materializes the values in this column in the current record
* @param writerVersion
* writer version string from the Parquet file being read
*/
public ColumnReaderImpl(ColumnDescriptor path, PageReader pageReader, PrimitiveConverter converter,
ParsedVersion writerVersion) {
super(path, pageReader, converter, writerVersion);
consume();
}
@Override
boolean skipRL(int rl) {
return false;
}
@Override
void newPageInitialized(DataPage page) {
}
}