com.orientechnologies.orient.core.sql.parser

Class OBooleanExpression

java.lang.Object

com.orientechnologies.orient.core.sql.parser.SimpleNode

com.orientechnologies.orient.core.sql.parser.OBooleanExpression

All Implemented Interfaces:

Node

Direct Known Subclasses:

OAndBlock, OBetweenCondition, OBinaryCondition, OContainsAllCondition, OContainsCondition, OContainsTextCondition, OContainsValueCondition, OInCondition, OIndexMatchCondition, OInstanceofCondition, OIsDefinedCondition, OIsNotDefinedCondition, OIsNotNullCondition, OIsNullCondition, OMatchesCondition, ONotBlock, ONotInCondition, OOrBlock, OParenthesisBlock

public abstract class OBooleanExpression
extends SimpleNode

Created by luigidellaquila on 07/11/14.

Field Summary

Fields

Modifier and Type	Field and Description
static OBooleanExpression	FALSE
static OBooleanExpression	TRUE

Fields inherited from class com.orientechnologies.orient.core.sql.parser.SimpleNode

children, firstToken, id, lastToken, parent, parser, value

Constructor Summary

Constructors

Constructor and Description
OBooleanExpression(int id)
OBooleanExpression(OrientSql p, int id)

Method Summary

Modifier and Type	Method and Description
protected OAndBlock	encapsulateInAndBlock(OBooleanExpression item)
abstract boolean	evaluate(OIdentifiable currentRecord, OCommandContext ctx)
List<OAndBlock>	flatten()
protected abstract List<Object>	getExternalCalculationConditions()
List<OBinaryCondition>	getIndexedFunctionConditions(OClass iSchemaClass, ODatabaseDocumentInternal database)
abstract List<String>	getMatchPatternInvolvedAliases()
protected abstract int	getNumberOfExternalCalculations()
Object	jjtAccept(OrientSqlVisitor visitor, Object data) Accept the visitor.
protected abstract boolean	supportsBasicCalculation()

Methods inherited from class com.orientechnologies.orient.core.sql.parser.SimpleNode

childrenAccept, dump, getDatabase, getValue, jjtAddChild, jjtClose, jjtGetChild, jjtGetFirstToken, jjtGetLastToken, jjtGetNumChildren, jjtGetParent, jjtGetValue, jjtOpen, jjtSetFirstToken, jjtSetLastToken, jjtSetParent, jjtSetValue, toString, toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

TRUE

public static final OBooleanExpression TRUE

FALSE

public static final OBooleanExpression FALSE

Constructor Detail

OBooleanExpression

public OBooleanExpression(int id)

OBooleanExpression

public OBooleanExpression(OrientSql p,
                          int id)

Method Detail

jjtAccept

public Object jjtAccept(OrientSqlVisitor visitor,
                        Object data)

Accept the visitor.

Specified by:

jjtAccept in interface Node

Overrides:

jjtAccept in class SimpleNode

evaluate

public abstract boolean evaluate(OIdentifiable currentRecord,
                                 OCommandContext ctx)

supportsBasicCalculation

protected abstract boolean supportsBasicCalculation()

Returns:

true if this expression can be calculated in plain Java, false otherwise (eg. LUCENE operator)

getNumberOfExternalCalculations

protected abstract int getNumberOfExternalCalculations()

Returns:

the number of sub-expressions that have to be calculated using an external engine (eg. LUCENE)

getExternalCalculationConditions

protected abstract List<Object> getExternalCalculationConditions()

Returns:

the sub-expressions that have to be calculated using an external engine (eg. LUCENE)

getIndexedFunctionConditions

public List<OBinaryCondition> getIndexedFunctionConditions(OClass iSchemaClass,
                                                           ODatabaseDocumentInternal database)

flatten

public List<OAndBlock> flatten()

encapsulateInAndBlock

protected OAndBlock encapsulateInAndBlock(OBooleanExpression item)

getMatchPatternInvolvedAliases

public abstract List<String> getMatchPatternInvolvedAliases()