com.orientechnologies.orient.core.sql.operator

Class OQueryOperatorEquality

java.lang.Object

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

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

Direct Known Subclasses:

OQueryOperatorEqualityNotNulls, OQueryOperatorIs

public abstract class OQueryOperatorEquality
extends OQueryOperator

Base equality operator. It's an abstract class able to compare the equality between two values.

Author:

Luca Garulli

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

Modifier	Constructor and Description
protected	OQueryOperatorEquality(String iKeyword, int iPrecedence, boolean iLogical)
protected	OQueryOperatorEquality(String iKeyword, int iPrecedence, boolean iLogical, int iExpectedRightWords)
protected	OQueryOperatorEquality(String iKeyword, int iPrecedence, boolean iLogical, int iExpectedRightWords, boolean iExpectsParameters)

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(OBinaryField iFirstField, OBinaryField iSecondField, OCommandContext iContext)
protected abstract boolean	evaluateExpression(OIdentifiable iRecord, OSQLFilterCondition iCondition, Object iLeft, Object iRight, OCommandContext iContext)
Object	evaluateRecord(OIdentifiable iRecord, ODocument iCurrentResult, OSQLFilterCondition iCondition, Object iLeft, Object iRight, OCommandContext iContext)

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

canBeMerged, canShortCircuit, compare, configure, executeIndexQuery, getBeginRidRange, getEndRidRange, getIndexReuseType, getOIndexSearchResult, getSyntax, isSupportingBinaryEvaluate, isUnary, toString, updateProfiler

Methods inherited from class java.lang.Object

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

Constructor Detail

OQueryOperatorEquality

protected OQueryOperatorEquality(String iKeyword,
                                 int iPrecedence,
                                 boolean iLogical)

OQueryOperatorEquality

protected OQueryOperatorEquality(String iKeyword,
                                 int iPrecedence,
                                 boolean iLogical,
                                 int iExpectedRightWords)

OQueryOperatorEquality

protected OQueryOperatorEquality(String iKeyword,
                                 int iPrecedence,
                                 boolean iLogical,
                                 int iExpectedRightWords,
                                 boolean iExpectsParameters)

Method Detail

evaluateExpression

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

evaluate

public boolean evaluate(OBinaryField iFirstField,
                        OBinaryField iSecondField,
                        OCommandContext iContext)

evaluateRecord

public Object evaluateRecord(OIdentifiable iRecord,
                             ODocument iCurrentResult,
                             OSQLFilterCondition iCondition,
                             Object iLeft,
                             Object iRight,
                             OCommandContext iContext)

Specified by:

evaluateRecord in class OQueryOperator