Package com.arcadedb.query.sql.parser

Class IsDefinedCondition

java.lang.Object

com.arcadedb.query.sql.parser.SimpleNode

com.arcadedb.query.sql.parser.BooleanExpression

com.arcadedb.query.sql.parser.IsDefinedCondition

All Implemented Interfaces:

Node, SimpleBooleanExpression

public class IsDefinedCondition
extends BooleanExpression
implements SimpleBooleanExpression

Field Summary

Fields

Modifier and Type	Field	Description
protected Expression	expression

Fields inherited from class com.arcadedb.query.sql.parser.BooleanExpression

FALSE, TRUE

Fields inherited from class com.arcadedb.query.sql.parser.SimpleNode

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

Constructor Summary

Constructors

Constructor	Description
IsDefinedCondition(int id)
IsDefinedCondition(SqlParser p, int id)

Method Summary

Modifier and Type	Method	Description
IsDefinedCondition	copy()
boolean	equals(Object o)
boolean	evaluate(Identifiable currentRecord, CommandContext ctx)
boolean	evaluate(Result currentRecord, CommandContext ctx)
void	extractSubQueries(SubQueryCollector collector)
protected List<Object>	getExternalCalculationConditions()
List<String>	getMatchPatternInvolvedAliases()	if the condition involved the current pattern (MATCH statement, eg.
protected int	getNumberOfExternalCalculations()
int	hashCode()
boolean	isCacheable()
boolean	needsAliases(Set<String> aliases)
boolean	refersToParent()
boolean	supportsBasicCalculation()
void	toString(Map<String,Object> params, StringBuilder builder)

Methods inherited from class com.arcadedb.query.sql.parser.BooleanExpression

deserialize, deserializeFromOResult, encapsulateInAndBlock, flatten, getIndexedFunctionConditions, isEmpty, serialize, transformToUpdateItem

Methods inherited from class com.arcadedb.query.sql.parser.SimpleNode

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

Methods inherited from class java.lang.Object

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

Field Detail

expression

protected Expression expression

Constructor Detail

IsDefinedCondition

public IsDefinedCondition(int id)

IsDefinedCondition

public IsDefinedCondition(SqlParser p,
                          int id)

Method Detail

evaluate

public boolean evaluate(Identifiable currentRecord,
                        CommandContext ctx)

Specified by:

evaluate in class BooleanExpression

evaluate

public boolean evaluate(Result currentRecord,
                        CommandContext ctx)

Specified by:

evaluate in class BooleanExpression

toString

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

Overrides:

toString in class SimpleNode

supportsBasicCalculation

public boolean supportsBasicCalculation()

Specified by:

supportsBasicCalculation in class BooleanExpression

Returns:

true if this expression can be calculated in plain Java, false otherwise

getNumberOfExternalCalculations

protected int getNumberOfExternalCalculations()

Specified by:

getNumberOfExternalCalculations in class BooleanExpression

Returns:

the number of sub-expressions that have to be calculated using an external engine

getExternalCalculationConditions

protected List<Object> getExternalCalculationConditions()

Specified by:

getExternalCalculationConditions in class BooleanExpression

Returns:

the sub-expressions that have to be calculated using an external engine

needsAliases

public boolean needsAliases(Set<String> aliases)

Specified by:

needsAliases in class BooleanExpression

copy

public IsDefinedCondition copy()

Specified by:

copy in class BooleanExpression

extractSubQueries

public void extractSubQueries(SubQueryCollector collector)

Specified by:

extractSubQueries in class BooleanExpression

refersToParent

public boolean refersToParent()

Specified by:

refersToParent in class BooleanExpression

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getMatchPatternInvolvedAliases

public List<String> getMatchPatternInvolvedAliases()

Description copied from interface: SimpleBooleanExpression

if the condition involved the current pattern (MATCH statement, eg. $matched.something = foo), returns the name of involved pattern aliases ("something" in this case)

Specified by:

getMatchPatternInvolvedAliases in interface SimpleBooleanExpression

Specified by:

getMatchPatternInvolvedAliases in class BooleanExpression

Returns:

a list of pattern aliases involved in this condition. Null it does not involve the pattern

isCacheable

public boolean isCacheable()

Specified by:

isCacheable in class BooleanExpression