Package com.orientechnologies.orient.core.sql.parser

Class OAndBlock

java.lang.Object

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

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

com.orientechnologies.orient.core.sql.parser.OAndBlock

All Implemented Interfaces:

Node

public class OAndBlock
extends OBooleanExpression

Field Summary

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

FALSE, TRUE

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

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

Constructor Summary

Constructors

Constructor	Description
OAndBlock(int id)
OAndBlock(OrientSql p, int id)

Method Summary

Modifier and Type	Method	Description
void	addSubBlock(OBooleanExpression block)
boolean	allEqualities()
boolean	allNullCheck()
int	conditionsCount()
OAndBlock	copy()
protected OAndBlock	encapsulateInAndBlock(OBooleanExpression item)
boolean	equals(Object o)
boolean	evaluate(OResult currentRecord, OCommandContext ctx)
OAndBlock	extractRidRanges(OCommandContext ctx)
void	extractSubQueries(SubQueryCollector collector)
Optional<OIndexCandidate>	findIndex(OIndexFinder info, OCommandContext ctx)
List<OAndBlock>	flatten()
protected List<Object>	getExternalCalculationConditions()
List<OBinaryCondition>	getIndexedFunctionConditions(OClass iSchemaClass, ODatabaseDocumentInternal database)
OBooleanExpression	getIndexKeyCondition()
OBooleanExpression	getIndexRidCondition()
List<String>	getMatchPatternInvolvedAliases()
protected int	getNumberOfExternalCalculations()
List<OBooleanExpression>	getSubBlocks()
int	hashCode()
boolean	isAlwaysTrue()	returns true only if the expression does not need any further evaluation (eg.
boolean	isCacheable()
boolean	isEmpty()
boolean	needsAliases(Set<String> aliases)
boolean	refersToParent()
OBooleanExpression	rewriteIndexChainsAsSubqueries(OCommandContext ctx, OClass clazz)
void	setSubBlocks(List<OBooleanExpression> subBlocks)
protected boolean	supportsBasicCalculation()
void	toGenericStatement(StringBuilder builder)
void	toString(Map<Object,Object> params, StringBuilder builder)
void	translateLuceneOperator()

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

deserialize, deserializeFromOResult, serialize, transformToUpdateItem

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

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

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

OAndBlock

public OAndBlock(int id)

OAndBlock

public OAndBlock(OrientSql p,
 int id)

Method Details

evaluate

public boolean evaluate(OResult currentRecord,
 OCommandContext ctx)

Specified by:

evaluate in class OBooleanExpression

getSubBlocks

public List<OBooleanExpression> getSubBlocks()

setSubBlocks

public void setSubBlocks(List<OBooleanExpression> subBlocks)

addSubBlock

public void addSubBlock(OBooleanExpression block)

toString

public void toString(Map<Object,Object> params,
 StringBuilder builder)

Specified by:

toString in class SimpleNode

toGenericStatement

public void toGenericStatement(StringBuilder builder)

Specified by:

toGenericStatement in class SimpleNode

supportsBasicCalculation

protected boolean supportsBasicCalculation()

Specified by:

supportsBasicCalculation in class OBooleanExpression

Returns:

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

getNumberOfExternalCalculations

protected int getNumberOfExternalCalculations()

Specified by:

getNumberOfExternalCalculations in class OBooleanExpression

Returns:

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

getExternalCalculationConditions

protected List<Object> getExternalCalculationConditions()

Specified by:

getExternalCalculationConditions in class OBooleanExpression

Returns:

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

getIndexedFunctionConditions

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

Overrides:

getIndexedFunctionConditions in class OBooleanExpression

flatten

public List<OAndBlock> flatten()

Overrides:

flatten in class OBooleanExpression

encapsulateInAndBlock

protected OAndBlock encapsulateInAndBlock(OBooleanExpression item)

Overrides:

encapsulateInAndBlock in class OBooleanExpression

needsAliases

public boolean needsAliases(Set<String> aliases)

Specified by:

needsAliases in class OBooleanExpression

copy

public OAndBlock copy()

Specified by:

copy in class OBooleanExpression

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

isEmpty

public boolean isEmpty()

Overrides:

isEmpty in class OBooleanExpression

extractSubQueries

public void extractSubQueries(SubQueryCollector collector)

Specified by:

extractSubQueries in class OBooleanExpression

refersToParent

public boolean refersToParent()

Specified by:

refersToParent in class OBooleanExpression

getMatchPatternInvolvedAliases

public List<String> getMatchPatternInvolvedAliases()

Specified by:

getMatchPatternInvolvedAliases in class OBooleanExpression

translateLuceneOperator

public void translateLuceneOperator()

Overrides:

translateLuceneOperator in class OBooleanExpression

isCacheable

public boolean isCacheable()

Specified by:

isCacheable in class OBooleanExpression

rewriteIndexChainsAsSubqueries

public OBooleanExpression rewriteIndexChainsAsSubqueries(OCommandContext ctx,
 OClass clazz)

Overrides:

rewriteIndexChainsAsSubqueries in class OBooleanExpression

findIndex

public Optional<OIndexCandidate> findIndex(OIndexFinder info,
 OCommandContext ctx)

Overrides:

findIndex in class OBooleanExpression

allEqualities

public boolean allEqualities()

allNullCheck

public boolean allNullCheck()

isAlwaysTrue

public boolean isAlwaysTrue()

Description copied from class: OBooleanExpression

returns true only if the expression does not need any further evaluation (eg. "true") and always evaluates to true. It is supposed to be used as and optimization, and is allowed to return false negatives

Overrides:

isAlwaysTrue in class OBooleanExpression

Returns:

extractRidRanges

public OAndBlock extractRidRanges(OCommandContext ctx)

Overrides:

extractRidRanges in class OBooleanExpression

conditionsCount

public int conditionsCount()

Overrides:

conditionsCount in class OBooleanExpression

getIndexKeyCondition

public OBooleanExpression getIndexKeyCondition()

Overrides:

getIndexKeyCondition in class OBooleanExpression

getIndexRidCondition

public OBooleanExpression getIndexRidCondition()

Overrides:

getIndexRidCondition in class OBooleanExpression