org.cloudgraph.hbase.scan

Class WildcardStringLiteral

java.lang.Object

org.cloudgraph.hbase.scan.ScanLiteral

org.cloudgraph.hbase.scan.StringLiteral

org.cloudgraph.hbase.scan.WildcardStringLiteral

All Implemented Interfaces:

CompleteRowKeyLiteral, FuzzyRowKeyLiteral, PartialRowKeyLiteral, WildcardPartialRowKeyLiteral

public class WildcardStringLiteral
extends StringLiteral
implements WildcardPartialRowKeyLiteral, FuzzyRowKeyLiteral

A wildcard string data "flavor" specific literal class used to abstract the complexities involved in assembling the various segments and fields of composite (scan start/stop) row keys under various relational and logical operator and various configurable composite key-field hashing, formatting, padding and other features.

Since:

0.5

Author:

Scott Cinnamond

See Also:

TableMapping, HBaseDataConverter

Field Summary

Fields

Modifier and Type	Field and Description
protected Padding	padding

Fields inherited from class org.cloudgraph.hbase.scan.StringLiteral

INCREMENT

Fields inherited from class org.cloudgraph.hbase.scan.ScanLiteral

charset, dataConverter, fieldMapping, HASH_INCREMENT, keySupport, literal, logicalOperatorContext, property, relationalOperator, rootType, table

Constructor Summary

Constructors

Constructor and Description
WildcardStringLiteral(String literal, org.plasma.sdo.PlasmaType rootType, org.plasma.query.model.PredicateOperator wildcardOperator, org.plasma.query.model.LogicalOperatorName logicalOperatorContext, DataRowKeyFieldMapping fieldConfig, StoreMappingContext mappingContext)

Method Summary

Modifier and Type	Method and Description
byte[]	getBetweenStartBytes() Returns the "start row" bytes used under certain conditions to represent a "wildcard" operator under an HBase partial row-key scan under the various optionally configurable hashing, formatting and padding features.
byte[]	getBetweenStopBytes() Returns the "stop row" bytes used under certain conditions to represent a "wildcard" operator under an HBase partial row-key scan under the various optionally configurable hashing, formatting and padding features.
byte[]	getFuzzyInfoBytes()
byte[]	getFuzzyKeyBytes()
byte[]	getStartBytes() Returns the HBase scan "start-row" composite row-key field bytes for this literal under the various relational, logical operator and other optionally configurable hashing, formatting and padding features.
byte[]	getStopBytes() Returns the HBase scan "stop-row" composite row-key field bytes for this literal under the various relational, logical operator and other optionally configurable hashing, formatting and padding features.
org.plasma.query.model.PredicateOperator	getWildcardOperator()

Methods inherited from class org.cloudgraph.hbase.scan.StringLiteral

getEqualsBytes, getEqualsStartBytes, getEqualsStopBytes, getGreaterThanEqualStartBytes, getGreaterThanEqualStopBytes, getGreaterThanStartBytes, getGreaterThanStopBytes, getLessThanEqualStartBytes, getLessThanEqualStopBytes, getLessThanStartBytes, getLessThanStopBytes

Methods inherited from class org.cloudgraph.hbase.scan.ScanLiteral

getContent, getFieldConfig, getLogicalOperatorContext, getRelationalOperator, hastLogicalOperatorContext

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.cloudgraph.hbase.scan.PartialRowKeyLiteral

getEqualsStartBytes, getEqualsStopBytes, getGreaterThanEqualStartBytes, getGreaterThanEqualStopBytes, getGreaterThanStartBytes, getGreaterThanStopBytes, getLessThanEqualStartBytes, getLessThanEqualStopBytes, getLessThanStartBytes, getLessThanStopBytes

Field Detail

padding

protected Padding padding

Constructor Detail

WildcardStringLiteral

public WildcardStringLiteral(String literal,
                             org.plasma.sdo.PlasmaType rootType,
                             org.plasma.query.model.PredicateOperator wildcardOperator,
                             org.plasma.query.model.LogicalOperatorName logicalOperatorContext,
                             DataRowKeyFieldMapping fieldConfig,
                             StoreMappingContext mappingContext)

Method Detail

getWildcardOperator

public org.plasma.query.model.PredicateOperator getWildcardOperator()

getStartBytes

public byte[] getStartBytes()

Returns the HBase scan "start-row" composite row-key field bytes for this literal under the various relational, logical operator and other optionally configurable hashing, formatting and padding features.

Specified by:

getStartBytes in interface PartialRowKeyLiteral

Overrides:

getStartBytes in class ScanLiteral

Returns:

the HBase scan "start-row" composite row-key field bytes for this literal under the various relational, logical operator and other optionally configurable hashing, formatting and padding features.

getStopBytes

public byte[] getStopBytes()

Returns the HBase scan "stop-row" composite row-key field bytes for this literal under the various relational, logical operator and other optionally configurable hashing, formatting and padding features.

Specified by:

getStopBytes in interface PartialRowKeyLiteral

Overrides:

getStopBytes in class ScanLiteral

Returns:

the HBase scan "stop-row" composite row-key field bytes for this literal under the various relational, logical operator and other optionally configurable hashing, formatting and padding features.

getFuzzyKeyBytes

public byte[] getFuzzyKeyBytes()

Specified by:

getFuzzyKeyBytes in interface FuzzyRowKeyLiteral

Overrides:

getFuzzyKeyBytes in class StringLiteral

getFuzzyInfoBytes

public byte[] getFuzzyInfoBytes()

Specified by:

getFuzzyInfoBytes in interface FuzzyRowKeyLiteral

Overrides:

getFuzzyInfoBytes in class StringLiteral

getBetweenStartBytes

public byte[] getBetweenStartBytes()

Returns the "start row" bytes used under certain conditions to represent a "wildcard" operator under an HBase partial row-key scan under the various optionally configurable hashing, formatting and padding features.

Specified by:

getBetweenStartBytes in interface WildcardPartialRowKeyLiteral

Returns:

the "start row" bytes used under certain conditions to represent a "wildcard" operator under an HBase partial row-key scan under the various optionally configurable hashing, formatting and padding features.

getBetweenStopBytes

public byte[] getBetweenStopBytes()

Returns the "stop row" bytes used under certain conditions to represent a "wildcard" operator under an HBase partial row-key scan under the various optionally configurable hashing, formatting and padding features.

Specified by:

getBetweenStopBytes in interface WildcardPartialRowKeyLiteral

Returns:

the "stop row" bytes used under certain conditions to represent a "wildcard" operator under an HBase partial row-key scan under the various optionally configurable hashing, formatting and padding features.