Delete (Apache HBase 1.4.11 API)

java.lang.Object
- org.apache.hadoop.hbase.client.Operation
- - org.apache.hadoop.hbase.client.OperationWithAttributes
  - - org.apache.hadoop.hbase.client.Mutation
    - - org.apache.hadoop.hbase.client.Delete

All Implemented Interfaces:

Comparable<Row>, CellScannable, Attributes, Row, HeapSize
```
@InterfaceAudience.Public
@InterfaceStability.Stable
public class Delete
extends Mutation
implements Comparable<Row>
```
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 deleteFamily for each family to delete.
To delete multiple versions of specific columns, execute deleteColumns for each column to delete.
To delete specific versions of specific columns, execute 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.

Field Summary
- Fields inherited from class org.apache.hadoop.hbase.client.Mutation
  durability, familyMap, MUTATION_OVERHEAD, RETURN_RESULTS, row, ts
- Fields inherited from class org.apache.hadoop.hbase.client.OperationWithAttributes
  ID_ATRIBUTE

Constructor Summary

Constructors
Constructor and Description
`Delete(byte[] row)` Create a Delete operation for the specified row.
`Delete(byte[] rowArray, int rowOffset, int rowLength)` Create a Delete operation for the specified row and timestamp.
`Delete(byte[] rowArray, int rowOffset, int rowLength, long ts)` Create a Delete operation for the specified row and timestamp.
`Delete(byte[] row, long timestamp)` Create a Delete operation for the specified row and timestamp.
`Delete(Delete d)`

Method Summary

Methods
Modifier and Type	Method and Description
`Delete`	`addColumn(byte[] family, byte[] qualifier)` Delete the latest version of the specified column.
`Delete`	`addColumn(byte[] family, byte[] qualifier, long timestamp)` Delete the specified version of the specified column.
`Delete`	`addColumns(byte[] family, byte[] qualifier)` Delete all versions of the specified column.
`Delete`	`addColumns(byte[] family, byte[] qualifier, long timestamp)` Delete all versions of the specified column with a timestamp less than or equal to the specified timestamp.
`Delete`	`addDeleteMarker(Cell kv)` Advanced use only.
`Delete`	`addFamily(byte[] family)` Delete all versions of all columns of the specified family.
`Delete`	`addFamily(byte[] family, long timestamp)` Delete all columns of the specified family with a timestamp less than or equal to the specified timestamp.
`Delete`	`addFamilyVersion(byte[] family, long timestamp)` Delete all columns of the specified family with a timestamp equal to the specified timestamp.
`Delete`	`deleteColumn(byte[] family, byte[] qualifier)` Deprecated. Since hbase-1.0.0. Use `addColumn(byte[], byte[])`
`Delete`	`deleteColumn(byte[] family, byte[] qualifier, long timestamp)` Deprecated. Since hbase-1.0.0. Use `addColumn(byte[], byte[], long)`
`Delete`	`deleteColumns(byte[] family, byte[] qualifier)` Deprecated. Since hbase-1.0.0. Use `addColumns(byte[], byte[])`
`Delete`	`deleteColumns(byte[] family, byte[] qualifier, long timestamp)` Deprecated. Since hbase-1.0.0. Use `addColumns(byte[], byte[], long)`
`Delete`	`deleteFamily(byte[] family)` Deprecated. Since 1.0.0. Use `addFamily(byte[])`
`Delete`	`deleteFamily(byte[] family, long timestamp)` Deprecated. Since 1.0.0. Use `addFamily(byte[], long)`
`Delete`	`deleteFamilyVersion(byte[] family, long timestamp)` Deprecated. Since hbase-1.0.0. Use `addFamilyVersion(byte[], long)`
`Delete`	`setACL(Map<String,Permission> perms)`
`Delete`	`setACL(String user, Permission perms)`
`Delete`	`setAttribute(String name, byte[] value)` Sets an attribute.
`Delete`	`setCellVisibility(CellVisibility expression)` Sets the visibility expression associated with cells in this Mutation.
`Delete`	`setClusterIds(List<UUID> clusterIds)` Marks that the clusters with the given clusterIds have consumed the mutation
`Delete`	`setDurability(Durability d)` Set the durability for this mutation
`Delete`	`setFamilyCellMap(NavigableMap<byte[],List<Cell>> map)` Method for setting the put's familyMap
`Delete`	`setFamilyMap(NavigableMap<byte[],List<KeyValue>> map)` Deprecated.
`Delete`	`setId(String id)` This method allows you to set an identifier on an operation.
`Delete`	`setPriority(int priority)`
`Delete`	`setTimestamp(long timestamp)` Set the timestamp of the delete.
`Delete`	`setTTL(long ttl)` Set the TTL desired for the result of the mutation, in milliseconds.
`Delete`	`setWriteToWAL(boolean write)` Deprecated.
`Map<String,Object>`	`toMap(int maxCols)` Compile the details beyond the scope of getFingerprint (row, columns, timestamps, etc.) into a Map along with the fingerprinted information.

Methods inherited from class org.apache.hadoop.hbase.client.Mutation
cellScanner, compareTo, extraHeapSize, getACL, getCellVisibility, getClusterIds, getDurability, getFamilyCellMap, getFamilyMap, getFingerprint, getRow, getTimeStamp, getTTL, getWriteToWAL, heapSize, isEmpty, isReturnResults, numFamilies, setReturnResults, size

Methods inherited from class org.apache.hadoop.hbase.client.OperationWithAttributes
getAttribute, getAttributeSize, getAttributesMap, getId, getPriority

Methods inherited from class org.apache.hadoop.hbase.client.Operation
toJSON, toJSON, toMap, toString, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Comparable
compareTo

- Constructor Detail
  - Delete
```
public Delete(byte[] row)
```
    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).
    
    Parameters:
    row - row key
  - Delete
```
public Delete(byte[] row,
      long 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.
    
    Parameters:
    row - row key
    timestamp - maximum version timestamp (only for delete row)
  - Delete
```
public Delete(byte[] rowArray,
      int rowOffset,
      int rowLength)
```
    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.
    
    Parameters:
    rowArray - We make a local copy of this passed in row.
    rowOffset -
    rowLength -
  - Delete
```
public Delete(byte[] rowArray,
      int rowOffset,
      int rowLength,
      long ts)
```
    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.
    
    Parameters:
    rowArray - We make a local copy of this passed in row.
    rowOffset -
    rowLength -
    ts - maximum version timestamp (only for delete row)
  - Delete
```
public Delete(Delete d)
```
    Parameters:
    d - Delete to clone.
- Method Detail
  - addDeleteMarker
```
public Delete addDeleteMarker(Cell kv)
                       throws IOException
```
    Advanced use only. Add an existing delete marker to this Delete object.
    
    Parameters:
    kv - An existing KeyValue of type "delete".
    
    Returns:
    this for invocation chaining
    
    Throws:
    
    IOException
  - deleteFamily
```
@Deprecated
public Delete deleteFamily(byte[] family)
```
    Deprecated. Since 1.0.0. Use addFamily(byte[])
    
    Delete all versions of all columns of the specified family.
    Overrides previous calls to deleteColumn and deleteColumns for the specified family.
    
    Parameters:
    family - family name
    
    Returns:
    this for invocation chaining
  - addFamily
```
public Delete addFamily(byte[] family)
```
    Delete all versions of all columns of the specified family.
    Overrides previous calls to deleteColumn and deleteColumns for the specified family.
    
    Parameters:
    family - family name
    
    Returns:
    this for invocation chaining
  - deleteFamily
```
@Deprecated
public Delete deleteFamily(byte[] family,
                             long timestamp)
```
    Deprecated. Since 1.0.0. Use addFamily(byte[], long)
    
    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.
    
    Parameters:
    family - family name
    timestamp - maximum version timestamp
    
    Returns:
    this for invocation chaining
  - addFamily
```
public Delete addFamily(byte[] family,
               long timestamp)
```
    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.
    
    Parameters:
    family - family name
    timestamp - maximum version timestamp
    
    Returns:
    this for invocation chaining
  - deleteFamilyVersion
```
@Deprecated
public Delete deleteFamilyVersion(byte[] family,
                                    long timestamp)
```
    Deprecated. Since hbase-1.0.0. Use addFamilyVersion(byte[], long)
    
    Delete all columns of the specified family with a timestamp equal to the specified timestamp.
    
    Parameters:
    family - family name
    timestamp - version timestamp
    
    Returns:
    this for invocation chaining
  - addFamilyVersion
```
public Delete addFamilyVersion(byte[] family,
                      long timestamp)
```
    Delete all columns of the specified family with a timestamp equal to the specified timestamp.
    
    Parameters:
    family - family name
    timestamp - version timestamp
    
    Returns:
    this for invocation chaining
  - deleteColumns
```
@Deprecated
public Delete deleteColumns(byte[] family,
                              byte[] qualifier)
```
    Deprecated. Since hbase-1.0.0. Use addColumns(byte[], byte[])
    
    Delete all versions of the specified column.
    
    Parameters:
    family - family name
    qualifier - column qualifier
    
    Returns:
    this for invocation chaining
  - addColumns
```
public Delete addColumns(byte[] family,
                byte[] qualifier)
```
    Delete all versions of the specified column.
    
    Parameters:
    family - family name
    qualifier - column qualifier
    
    Returns:
    this for invocation chaining
  - deleteColumns
```
@Deprecated
public Delete deleteColumns(byte[] family,
                              byte[] qualifier,
                              long timestamp)
```
    Deprecated. Since hbase-1.0.0. Use addColumns(byte[], byte[], long)
    
    Delete all versions of the specified column with a timestamp less than or equal to the specified timestamp.
    
    Parameters:
    family - family name
    qualifier - column qualifier
    timestamp - maximum version timestamp
    
    Returns:
    this for invocation chaining
  - addColumns
```
public Delete addColumns(byte[] family,
                byte[] qualifier,
                long timestamp)
```
    Delete all versions of the specified column with a timestamp less than or equal to the specified timestamp.
    
    Parameters:
    family - family name
    qualifier - column qualifier
    timestamp - maximum version timestamp
    
    Returns:
    this for invocation chaining
  - deleteColumn
```
@Deprecated
public Delete deleteColumn(byte[] family,
                             byte[] qualifier)
```
    Deprecated. Since hbase-1.0.0. Use addColumn(byte[], byte[])
    
    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.
    
    Parameters:
    family - family name
    qualifier - column qualifier
    
    Returns:
    this for invocation chaining
  - addColumn
```
public Delete addColumn(byte[] family,
               byte[] qualifier)
```
    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.
    
    Parameters:
    family - family name
    qualifier - column qualifier
    
    Returns:
    this for invocation chaining
  - deleteColumn
```
@Deprecated
public Delete deleteColumn(byte[] family,
                             byte[] qualifier,
                             long timestamp)
```
    Deprecated. Since hbase-1.0.0. Use addColumn(byte[], byte[], long)
    
    Delete the specified version of the specified column.
    
    Parameters:
    family - family name
    qualifier - column qualifier
    timestamp - version timestamp
    
    Returns:
    this for invocation chaining
  - addColumn
```
public Delete addColumn(byte[] family,
               byte[] qualifier,
               long timestamp)
```
    Delete the specified version of the specified column.
    
    Parameters:
    family - family name
    qualifier - column qualifier
    timestamp - version timestamp
    
    Returns:
    this for invocation chaining
  - setTimestamp
```
public Delete setTimestamp(long timestamp)
```
    Set the timestamp of the delete.
    
    Parameters:
    timestamp -
  - toMap
```
public Map<String,Object> toMap(int maxCols)
```
    Description copied from class: Mutation
    
    Compile the details beyond the scope of getFingerprint (row, columns, timestamps, etc.) into a Map along with the fingerprinted information. Useful for debugging, logging, and administration tools.
    
    Overrides:
    
    toMap in class Mutation
    
    Parameters:
    maxCols - a limit on the number of columns output prior to truncation
    
    Returns:
    Map
  - setAttribute
```
public Delete setAttribute(String name,
                  byte[] value)
```
    Description copied from interface: Attributes
    
    Sets an attribute. In case value = null attribute is removed from the attributes map. Attribute names starting with _ indicate system attributes.
    
    Specified by:
    
    setAttribute in interface Attributes
    
    Overrides:
    
    setAttribute in class OperationWithAttributes
    
    Parameters:
    name - attribute name
    value - attribute value
  - setId
```
public Delete setId(String id)
```
    Description copied from class: OperationWithAttributes
    
    This method allows you to set an identifier on an operation. The original motivation for this was to allow the identifier to be used in slow query logging, but this could obviously be useful in other places. One use of this could be to put a class.method identifier in here to see where the slow query is coming from.
    
    Overrides:
    
    setId in class OperationWithAttributes
    
    Parameters:
    id - id to set for the scan
  - setWriteToWAL
```
@Deprecated
public Delete setWriteToWAL(boolean write)
```
    Deprecated.
    
    Description copied from class: Mutation
    
    Set whether this Delete should be written to the WAL or not. Not writing the WAL means you may lose edits on server crash. This method will reset any changes made via Mutation.setDurability(Durability)
    
    Overrides:
    
    setWriteToWAL in class Mutation
    
    Parameters:
    write - true if edits should be written to WAL, false if not
  - setDurability
```
public Delete setDurability(Durability d)
```
    Description copied from class: Mutation
    
    Set the durability for this mutation
    
    Overrides:
    
    setDurability in class Mutation
  - setFamilyCellMap
```
public Delete setFamilyCellMap(NavigableMap<byte[],List<Cell>> map)
```
    Description copied from class: Mutation
    
    Method for setting the put's familyMap
    
    Overrides:
    
    setFamilyCellMap in class Mutation
  - setFamilyMap
```
@Deprecated
public Delete setFamilyMap(NavigableMap<byte[],List<KeyValue>> map)
```
    Deprecated.
    
    Description copied from class: Mutation
    
    Method for setting the put's familyMap that is deprecated and inefficient.
    
    Overrides:
    
    setFamilyMap in class Mutation
  - setClusterIds
```
public Delete setClusterIds(List<UUID> clusterIds)
```
    Description copied from class: Mutation
    
    Marks that the clusters with the given clusterIds have consumed the mutation
    
    Overrides:
    
    setClusterIds in class Mutation
    
    Parameters:
    clusterIds - of the clusters that have consumed the mutation
  - setCellVisibility
```
public Delete setCellVisibility(CellVisibility expression)
```
    Description copied from class: Mutation
    
    Sets the visibility expression associated with cells in this Mutation.
    
    Overrides:
    
    setCellVisibility in class Mutation
  - setACL
```
public Delete setACL(String user,
            Permission perms)
```
    Overrides:
    
    setACL in class Mutation
    
    Parameters:
    user - User short name
    perms - Permissions for the user
  - setACL
```
public Delete setACL(Map<String,Permission> perms)
```
    Overrides:
    
    setACL in class Mutation
    
    Parameters:
    perms - A map of permissions for a user or users
  - setTTL
```
public Delete setTTL(long ttl)
```
    Description copied from class: Mutation
    
    Set the TTL desired for the result of the mutation, in milliseconds.
    
    Overrides:
    
    setTTL in class Mutation
    
    Parameters:
    ttl - the TTL desired for the result of the mutation, in milliseconds
    
    Returns:
    this
  - setPriority
```
public Delete setPriority(int priority)
```
    Overrides:
    
    setPriority in class OperationWithAttributes

Class Delete

Field Summary

Fields inherited from class org.apache.hadoop.hbase.client.Mutation

Fields inherited from class org.apache.hadoop.hbase.client.OperationWithAttributes

Constructor Summary

Method Summary

Methods inherited from class org.apache.hadoop.hbase.client.Mutation

Methods inherited from class org.apache.hadoop.hbase.client.OperationWithAttributes

Methods inherited from class org.apache.hadoop.hbase.client.Operation

Methods inherited from class java.lang.Object

Methods inherited from interface java.lang.Comparable

Constructor Detail

Delete

Delete

Delete

Delete

Delete

Method Detail

addDeleteMarker

deleteFamily

addFamily

deleteFamily

addFamily

deleteFamilyVersion

addFamilyVersion

deleteColumns

addColumns

deleteColumns

addColumns

deleteColumn

addColumn

deleteColumn

addColumn

setTimestamp

toMap

setAttribute

setId

setWriteToWAL

setDurability

setFamilyCellMap

setFamilyMap

setClusterIds

setCellVisibility

setACL

setACL

setTTL

setPriority