parquet.hadoop.metadata.BlockMetaData 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.hadoop.metadata;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Block metadata stored in the footer and passed in an InputSplit
*
* @author Julien Le Dem
*
*/
public class BlockMetaData {
private List columns = new ArrayList();
private long rowCount;
private long totalByteSize;
private String path;
public BlockMetaData() {
}
/**
* @param path the path to the file containing the data. Or null if same file the metadata was found
*/
public void setPath(String path) {
this.path = path;
}
/**
* @return the path relative to the parent of this file where the data is. Or null if it is in the same file.
*/
public String getPath() {
return path;
}
/**
* @return the rowCount
*/
public long getRowCount() {
return rowCount;
}
/**
* @param rowCount the rowCount to set
*/
public void setRowCount(long rowCount) {
this.rowCount = rowCount;
}
/**
* @return the totalByteSize
*/
public long getTotalByteSize() {
return totalByteSize;
}
/**
* @param totalByteSize the totalByteSize to set
*/
public void setTotalByteSize(long totalByteSize) {
this.totalByteSize = totalByteSize;
}
/**
*
* @param column the metadata for a column
*/
public void addColumn(ColumnChunkMetaData column) {
columns.add(column);
}
/**
*
* @return the metadata for columns
*/
public List getColumns() {
return Collections.unmodifiableList(columns);
}
@Override
public String toString() {
return "BlockMetaData{" + rowCount + ", " + totalByteSize + " " + columns + "}";
}
}