org.apache.parquet.internal.column.columnindex.ColumnIndex Maven / Gradle / Ivy
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* 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.internal.column.columnindex;
import java.nio.ByteBuffer;
import java.util.List;
import java.util.PrimitiveIterator;
import org.apache.parquet.filter2.predicate.FilterPredicate.Visitor;
import org.apache.parquet.internal.filter2.columnindex.ColumnIndexFilter;
/**
* Column index containing min/max and null count values for the pages in a column chunk. It also implements methods of
* {@link Visitor} to return the indexes of the matching pages. They are used by {@link ColumnIndexFilter}.
*
* @see org.apache.parquet.format.ColumnIndex
*/
public interface ColumnIndex extends Visitor {
/**
* @return the boundary order of the min/max values; used for converting to the related thrift object
*/
public BoundaryOrder getBoundaryOrder();
/**
* @return the unmodifiable list of null counts; used for converting to the related thrift object
*/
public List getNullCounts();
/**
* @return the unmodifiable list of null pages; used for converting to the related thrift object
*/
public List getNullPages();
/**
* @return the list of the min values as {@link ByteBuffer}s; used for converting to the related thrift object
*/
public List getMinValues();
/**
* @return the list of the max values as {@link ByteBuffer}s; used for converting to the related thrift object
*/
public List getMaxValues();
/**
* @return the unmodifiable list of the repetition level histograms for each page concatenated together; used for
* converting to the related thrift object
*/
default List getRepetitionLevelHistogram() {
throw new UnsupportedOperationException("Repetition level histogram is not implemented");
}
/**
* @return the unmodifiable list of the definition level histograms for each page concatenated together; used for
* converting to the related thrift object
*/
default List getDefinitionLevelHistogram() {
throw new UnsupportedOperationException("Definition level histogram is not implemented");
}
}