org.apache.storm.hbase.common

Class ColumnList

java.lang.Object

org.apache.storm.hbase.common.ColumnList

public class ColumnList
extends Object

Represents a list of HBase columns.

There are two types of columns, standard and counter.

Standard columns have column family (required), qualifier (optional), timestamp (optional), and a value (optional) values.

Counter columns have column family (required), qualifier (optional), and an increment (optional, but recommended) values.

Inserts/Updates can be added via the addColumn() and addCounter() methods.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ColumnList.AbstractColumn
static class	ColumnList.Column
static class	ColumnList.Counter

Constructor Summary

Constructors

Constructor and Description
ColumnList()

Method Summary

Modifier and Type	Method and Description
ColumnList	addColumn(byte[] family, byte[] qualifier, byte[] value) Add a standard HBase column
ColumnList	addColumn(byte[] family, byte[] qualifier, long ts, byte[] value) Add a standard HBase column.
ColumnList	addColumn(IColumn column) Add a standard HBase column given an instance of a class that implements the IColumn interface.
ColumnList	addCounter(byte[] family, byte[] qualifier, long incr) Add an HBase counter column.
ColumnList	addCounter(ICounter counter) Add an HBase counter column given an instance of a class that implements the ICounter interface.
ColumnList	deleteColumn(byte[] family, byte[] qualifier) Remove a standard HBase column
List<ColumnList.Column>	getColumns() Get the list of column definitions.
ArrayList<ColumnList.Column>	getColumnsToDelete() Get the list of ‘column to delete’ definitions.
List<ColumnList.Counter>	getCounters() Get the list of counter definitions.
boolean	hasColumns() Query to determine if we have column definitions.
boolean	hasColumnsToDelete() Query to determine if we have column delete definitions.
boolean	hasCounters() Query to determine if we have counter definitions.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ColumnList

public ColumnList()

Method Detail

addColumn

public ColumnList addColumn(byte[] family,
                            byte[] qualifier,
                            long ts,
                            byte[] value)

Add a standard HBase column.

Parameters:

family -

qualifier -

ts -

value -

Returns:

addColumn

public ColumnList addColumn(byte[] family,
                            byte[] qualifier,
                            byte[] value)

Add a standard HBase column

Parameters:

family -

qualifier -

value -

Returns:

addColumn

public ColumnList addColumn(IColumn column)

Add a standard HBase column given an instance of a class that implements the IColumn interface.

Parameters:

column -

Returns:

addCounter

public ColumnList addCounter(byte[] family,
                             byte[] qualifier,
                             long incr)

Add an HBase counter column.

Parameters:

family -

qualifier -

incr -

Returns:

addCounter

public ColumnList addCounter(ICounter counter)

Add an HBase counter column given an instance of a class that implements the ICounter interface.

Parameters:

counter -

Returns:

deleteColumn

public ColumnList deleteColumn(byte[] family,
                               byte[] qualifier)

Remove a standard HBase column

Parameters:

family -

qualifier -

Returns:

hasColumns

public boolean hasColumns()

Query to determine if we have column definitions.

Returns:

hasColumnsToDelete

public boolean hasColumnsToDelete()

Query to determine if we have column delete definitions.

Returns:

hasCounters

public boolean hasCounters()

Query to determine if we have counter definitions.

Returns:

getColumns

public List<ColumnList.Column> getColumns()

Get the list of column definitions.

Returns:

getColumnsToDelete

public ArrayList<ColumnList.Column> getColumnsToDelete()

Get the list of ‘column to delete’ definitions.

Returns:

getCounters

public List<ColumnList.Counter> getCounters()

Get the list of counter definitions.

Returns: