org.cloudgraph.hbase.graph

Class LocalEdgeRecognizerContext

java.lang.Object

org.cloudgraph.hbase.graph.LocalEdgeRecognizerContext

All Implemented Interfaces:

EvaluationContext

public class LocalEdgeRecognizerContext
extends Object
implements EvaluationContext

Context which supports the evaluation and "recognition" of a given data graph entity sequence value by a binary expression tree, within the context of the expression syntax and a given HBase KeyValue map.

A sequence uniquely identifies an data graph entity within a local data graph and is used to construct qualifier filters to return specific sequence-based column qualifiers and associated column values.

Since:

0.5.2

Author:

Scott Cinnamond

See Also:

HBaseGraphAssembler, GraphSliceSupport

Constructor Summary

Constructors

Constructor and Description
LocalEdgeRecognizerContext() Constructs an empty context.

Method Summary

Modifier and Type	Method and Description
Map<String,org.apache.hadoop.hbase.KeyValue>	getKeyMap() Returns the HBase KeyValue specific for the current sequence.
Long	getSequence() Returns the current sequence.
void	setKeyMap(Map<String,org.apache.hadoop.hbase.KeyValue> keyMap) Sets the HBase KeyValue specific for the current sequence.
void	setSequence(Long sequence) Sets the current sequence.

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalEdgeRecognizerContext

public LocalEdgeRecognizerContext()

Constructs an empty context.

Method Detail

getKeyMap

public Map<String,org.apache.hadoop.hbase.KeyValue> getKeyMap()

Returns the HBase KeyValue specific for the current sequence.

Returns:

the HBase KeyValue specific for the current sequence.

setKeyMap

public void setKeyMap(Map<String,org.apache.hadoop.hbase.KeyValue> keyMap)

Sets the HBase KeyValue specific for the current sequence.

getSequence

public Long getSequence()

Returns the current sequence.

Returns:

the current sequence.

setSequence

public void setSequence(Long sequence)

Sets the current sequence.