org.apache.hudi.org.apache.hadoop.hbase.client.Delete 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.hadoop.hbase.client;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.NavigableMap;
import java.util.UUID;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.security.access.Permission;
import org.apache.hadoop.hbase.security.visibility.CellVisibility;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.yetus.audience.InterfaceAudience;
/**
* Used to perform Delete operations on a single row.
*
* To delete an entire row, instantiate a Delete object with the row
* to delete. To further define the scope of what to delete, perform
* additional methods as outlined below.
*
* To delete specific families, execute {@link #addFamily(byte[]) deleteFamily}
* for each family to delete.
*
* To delete multiple versions of specific columns, execute
* {@link #addColumns(byte[], byte[]) deleteColumns}
* for each column to delete.
*
* To delete specific versions of specific columns, execute
* {@link #addColumn(byte[], byte[], long) deleteColumn}
* for each column version to delete.
*
* Specifying timestamps, deleteFamily and deleteColumns will delete all
* versions with a timestamp less than or equal to that passed. If no
* timestamp is specified, an entry is added with a timestamp of 'now'
* where 'now' is the servers's System.currentTimeMillis().
* Specifying a timestamp to the deleteColumn method will
* delete versions only with a timestamp equal to that specified.
* If no timestamp is passed to deleteColumn, internally, it figures the
* most recent cell's timestamp and adds a delete at that timestamp; i.e.
* it deletes the most recently added cell.
*
The timestamp passed to the constructor is used ONLY for delete of
* rows. For anything less -- a deleteColumn, deleteColumns or
* deleteFamily -- then you need to use the method overrides that take a
* timestamp. The constructor timestamp is not referenced.
*/
@InterfaceAudience.Public
public class Delete extends Mutation {
/**
* Create a Delete operation for the specified row.
*
* If no further operations are done, this will delete everything
* associated with the specified row (all versions of all columns in all
* families), with timestamp from current point in time to the past.
* Cells defining timestamp for a future point in time
* (timestamp > current time) will not be deleted.
* @param row row key
*/
public Delete(byte [] row) {
this(row, HConstants.LATEST_TIMESTAMP);
}
/**
* Create a Delete operation for the specified row and timestamp.
*
* If no further operations are done, this will delete all columns in all
* families of the specified row with a timestamp less than or equal to the
* specified timestamp.
*
* This timestamp is ONLY used for a delete row operation. If specifying
* families or columns, you must specify each timestamp individually.
* @param row row key
* @param timestamp maximum version timestamp (only for delete row)
*/
public Delete(byte [] row, long timestamp) {
this(row, 0, row.length, timestamp);
}
/**
* Create a Delete operation for the specified row and timestamp.
*
* If no further operations are done, this will delete all columns in all
* families of the specified row with a timestamp less than or equal to the
* specified timestamp.
*
* This timestamp is ONLY used for a delete row operation. If specifying
* families or columns, you must specify each timestamp individually.
* @param row We make a local copy of this passed in row.
* @param rowOffset
* @param rowLength
*/
public Delete(final byte[] row, final int rowOffset, final int rowLength) {
this(row, rowOffset, rowLength, HConstants.LATEST_TIMESTAMP);
}
/**
* Create a Delete operation for the specified row and timestamp.
*
* If no further operations are done, this will delete all columns in all
* families of the specified row with a timestamp less than or equal to the
* specified timestamp.
*
* This timestamp is ONLY used for a delete row operation. If specifying
* families or columns, you must specify each timestamp individually.
* @param row We make a local copy of this passed in row.
* @param rowOffset
* @param rowLength
* @param timestamp maximum version timestamp (only for delete row)
*/
public Delete(final byte[] row, final int rowOffset, final int rowLength, long timestamp) {
checkRow(row, rowOffset, rowLength);
this.row = Bytes.copy(row, rowOffset, rowLength);
setTimestamp(timestamp);
}
/**
* @param deleteToCopy delete to copy
*/
public Delete(final Delete deleteToCopy) {
super(deleteToCopy);
}
/**
* Construct the Delete with user defined data. NOTED:
* 1) all cells in the familyMap must have the delete type.
* see {@link org.apache.hadoop.hbase.Cell.Type}
* 2) the row of each cell must be same with passed row.
* @param row row. CAN'T be null
* @param ts timestamp
* @param familyMap the map to collect all cells internally. CAN'T be null
*/
public Delete(byte[] row, long ts, NavigableMap> familyMap) {
super(row, ts, familyMap);
}
/**
* Advanced use only. Add an existing delete marker to this Delete object.
* @param kv An existing KeyValue of type "delete".
* @return this for invocation chaining
* @throws IOException
* @deprecated As of release 2.0.0, this will be removed in HBase 3.0.0. Use {@link #add(Cell)}
* instead
*/
@SuppressWarnings("unchecked")
@Deprecated
public Delete addDeleteMarker(Cell kv) throws IOException {
return this.add(kv);
}
/**
* Add an existing delete marker to this Delete object.
* @param cell An existing cell of type "delete".
* @return this for invocation chaining
* @throws IOException
*/
public Delete add(Cell cell) throws IOException {
super.add(cell);
return this;
}
/**
* Delete all versions of all columns of the specified family.
*
* Overrides previous calls to deleteColumn and deleteColumns for the
* specified family.
* @param family family name
* @return this for invocation chaining
*/
public Delete addFamily(final byte [] family) {
this.addFamily(family, this.ts);
return this;
}
/**
* Delete all columns of the specified family with a timestamp less than
* or equal to the specified timestamp.
*
* Overrides previous calls to deleteColumn and deleteColumns for the
* specified family.
* @param family family name
* @param timestamp maximum version timestamp
* @return this for invocation chaining
*/
public Delete addFamily(final byte [] family, final long timestamp) {
if (timestamp < 0) {
throw new IllegalArgumentException("Timestamp cannot be negative. ts=" + timestamp);
}
List list = getCellList(family);
if(!list.isEmpty()) {
list.clear();
}
KeyValue kv = new KeyValue(row, family, null, timestamp, KeyValue.Type.DeleteFamily);
list.add(kv);
return this;
}
/**
* Delete all columns of the specified family with a timestamp equal to
* the specified timestamp.
* @param family family name
* @param timestamp version timestamp
* @return this for invocation chaining
*/
public Delete addFamilyVersion(final byte [] family, final long timestamp) {
List list = getCellList(family);
list.add(new KeyValue(row, family, null, timestamp,
KeyValue.Type.DeleteFamilyVersion));
return this;
}
/**
* Delete all versions of the specified column.
* @param family family name
* @param qualifier column qualifier
* @return this for invocation chaining
*/
public Delete addColumns(final byte [] family, final byte [] qualifier) {
addColumns(family, qualifier, this.ts);
return this;
}
/**
* Delete all versions of the specified column with a timestamp less than
* or equal to the specified timestamp.
* @param family family name
* @param qualifier column qualifier
* @param timestamp maximum version timestamp
* @return this for invocation chaining
*/
public Delete addColumns(final byte [] family, final byte [] qualifier, final long timestamp) {
if (timestamp < 0) {
throw new IllegalArgumentException("Timestamp cannot be negative. ts=" + timestamp);
}
List list = getCellList(family);
list.add(new KeyValue(this.row, family, qualifier, timestamp,
KeyValue.Type.DeleteColumn));
return this;
}
/**
* Delete the latest version of the specified column.
* This is an expensive call in that on the server-side, it first does a
* get to find the latest versions timestamp. Then it adds a delete using
* the fetched cells timestamp.
* @param family family name
* @param qualifier column qualifier
* @return this for invocation chaining
*/
public Delete addColumn(final byte [] family, final byte [] qualifier) {
this.addColumn(family, qualifier, this.ts);
return this;
}
/**
* Delete the specified version of the specified column.
* @param family family name
* @param qualifier column qualifier
* @param timestamp version timestamp
* @return this for invocation chaining
*/
public Delete addColumn(byte [] family, byte [] qualifier, long timestamp) {
if (timestamp < 0) {
throw new IllegalArgumentException("Timestamp cannot be negative. ts=" + timestamp);
}
List list = getCellList(family);
KeyValue kv = new KeyValue(this.row, family, qualifier, timestamp, KeyValue.Type.Delete);
list.add(kv);
return this;
}
@Override
public Delete setTimestamp(long timestamp) {
super.setTimestamp(timestamp);
return this;
}
@Override
public Delete setAttribute(String name, byte[] value) {
return (Delete) super.setAttribute(name, value);
}
@Override
public Delete setId(String id) {
return (Delete) super.setId(id);
}
@Override
public Delete setDurability(Durability d) {
return (Delete) super.setDurability(d);
}
/**
* Method for setting the Delete's familyMap
* @deprecated As of release 2.0.0, this will be removed in HBase 3.0.0.
* Use {@link Delete#Delete(byte[], long, NavigableMap)} instead
*/
@Deprecated
@Override
public Delete setFamilyCellMap(NavigableMap> map) {
return (Delete) super.setFamilyCellMap(map);
}
@Override
public Delete setClusterIds(List clusterIds) {
return (Delete) super.setClusterIds(clusterIds);
}
@Override
public Delete setCellVisibility(CellVisibility expression) {
return (Delete) super.setCellVisibility(expression);
}
@Override
public Delete setACL(String user, Permission perms) {
return (Delete) super.setACL(user, perms);
}
@Override
public Delete setACL(Map perms) {
return (Delete) super.setACL(perms);
}
@Override
public Delete setTTL(long ttl) {
throw new UnsupportedOperationException("Setting TTLs on Deletes is not supported");
}
@Override
public Delete setPriority(int priority) {
return (Delete) super.setPriority(priority);
}
}
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