me.prettyprint.hom

Class KeyConcatenationDelimiterStrategyImpl

java.lang.Object

me.prettyprint.hom.KeyConcatenationDelimiterStrategyImpl

All Implemented Interfaces:

KeyConcatenationStrategy

public class KeyConcatenationDelimiterStrategyImpl
extends Object
implements KeyConcatenationStrategy

Keys in Cassandra cannot inherently be multi-field, so a strategy must be employed to concatenate fields together.

This strategy uses a delimiter to segment the fields. By default the delimiter is 2 pipes, ||, but can be overriden by calling setDelimiter(byte[]).

Author:

B. Todd Burruss

Constructor Summary

Constructors

Constructor and Description
KeyConcatenationDelimiterStrategyImpl()

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	concat(List<byte[]> segmentList) Concatenate the byte[] List into a single byte[].
byte[]	getDelimiter()
void	setDelimiter(byte[] delimiter)
List<byte[]>	split(byte[] colFamKey) Split the byte[] into its fields (or segments).

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyConcatenationDelimiterStrategyImpl

public KeyConcatenationDelimiterStrategyImpl()

Method Detail

concat

public byte[] concat(List<byte[]> segmentList)

Description copied from interface: KeyConcatenationStrategy

Concatenate the byte[] List into a single byte[].

Specified by:

concat in interface KeyConcatenationStrategy

Returns:

concatenated byte[]

split

public List<byte[]> split(byte[] colFamKey)

Description copied from interface: KeyConcatenationStrategy

Split the byte[] into its fields (or segments).

Specified by:

split in interface KeyConcatenationStrategy

Returns:

List of fields, or segments

getDelimiter

public byte[] getDelimiter()

setDelimiter

public void setDelimiter(byte[] delimiter)