com.orientechnologies.orient.core.sql.operator

Class OQueryOperatorTraverse

java.lang.Object

com.orientechnologies.orient.core.sql.operator.OQueryOperator

com.orientechnologies.orient.core.sql.operator.OQueryOperatorEquality

com.orientechnologies.orient.core.sql.operator.OQueryOperatorEqualityNotNulls

com.orientechnologies.orient.core.sql.operator.OQueryOperatorTraverse

public class OQueryOperatorTraverse
extends OQueryOperatorEqualityNotNulls

TRAVERSE operator.

Author:

Luca Garulli (l.garulli--(at)--orientdb.com)

Nested Class Summary

Nested classes/interfaces inherited from class com.orientechnologies.orient.core.sql.operator.OQueryOperator

OQueryOperator.ORDER

Field Summary

Fields inherited from class com.orientechnologies.orient.core.sql.operator.OQueryOperator

DEFAULT_OPERATORS_ORDER, expectedRightWords, expectsParameters, keyword, precedence, unary

Constructor Summary

Constructors

Constructor and Description
OQueryOperatorTraverse()
OQueryOperatorTraverse(int startDeepLevel, int endDeepLevel, String[] iFieldList)

Method Summary

Modifier and Type	Method and Description
OQueryOperator	configure(List<String> iParams) Default State-less implementation: does not save parameters and just return itself
protected boolean	evaluateExpression(OIdentifiable iRecord, OSQLFilterCondition iCondition, Object iLeft, Object iRight, OCommandContext iContext)
ORID	getBeginRidRange(Object iLeft, Object iRight)
String[]	getCfgFields()
int	getEndDeepLevel()
ORID	getEndRidRange(Object iLeft, Object iRight)
OIndexReuseType	getIndexReuseType(Object iLeft, Object iRight) Returns hint how index can be used to calculate result of operator execution.
int	getStartDeepLevel()
String	getSyntax()
String	toString()

Methods inherited from class com.orientechnologies.orient.core.sql.operator.OQueryOperatorEqualityNotNulls

evaluateRecord

Methods inherited from class com.orientechnologies.orient.core.sql.operator.OQueryOperatorEquality

evaluate

Methods inherited from class com.orientechnologies.orient.core.sql.operator.OQueryOperator

canBeMerged, canShortCircuit, compare, executeIndexQuery, getOIndexSearchResult, isSupportingBinaryEvaluate, isUnary, updateProfiler

Methods inherited from class java.lang.Object

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

Constructor Detail

OQueryOperatorTraverse

public OQueryOperatorTraverse()

OQueryOperatorTraverse

public OQueryOperatorTraverse(int startDeepLevel,
                              int endDeepLevel,
                              String[] iFieldList)

Method Detail

getSyntax

public String getSyntax()

Overrides:

getSyntax in class OQueryOperator

evaluateExpression

protected boolean evaluateExpression(OIdentifiable iRecord,
                                     OSQLFilterCondition iCondition,
                                     Object iLeft,
                                     Object iRight,
                                     OCommandContext iContext)

Specified by:

evaluateExpression in class OQueryOperatorEquality

configure

public OQueryOperator configure(List<String> iParams)

Description copied from class: OQueryOperator

Default State-less implementation: does not save parameters and just return itself

Overrides:

configure in class OQueryOperator

Returns:

getStartDeepLevel

public int getStartDeepLevel()

getEndDeepLevel

public int getEndDeepLevel()

getCfgFields

public String[] getCfgFields()

getIndexReuseType

public OIndexReuseType getIndexReuseType(Object iLeft,
                                         Object iRight)

Description copied from class: OQueryOperator

Returns hint how index can be used to calculate result of operator execution.

Specified by:

getIndexReuseType in class OQueryOperator

Parameters:

iLeft - Value of left query parameter.

iRight - Value of right query parameter.

Returns:

Hint how index can be used to calculate result of operator execution.

toString

public String toString()

Overrides:

toString in class OQueryOperator

getBeginRidRange

public ORID getBeginRidRange(Object iLeft,
                             Object iRight)

Specified by:

getBeginRidRange in class OQueryOperator

getEndRidRange

public ORID getEndRidRange(Object iLeft,
                           Object iRight)

Specified by:

getEndRidRange in class OQueryOperator