com.orientechnologies.orient.core.sql.parser

Class OBaseIdentifier

java.lang.Object

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

com.orientechnologies.orient.core.sql.parser.OBaseIdentifier

All Implemented Interfaces:

Node

public class OBaseIdentifier
extends SimpleNode

Field Summary

Fields

Modifier and Type	Field and Description
protected OLevelZeroIdentifier	levelZero
protected OSuffixIdentifier	suffix

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

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

Constructor Summary

Constructors

Constructor and Description
OBaseIdentifier(int id)
OBaseIdentifier(OIdentifier identifier)
OBaseIdentifier(ORecordAttribute attr)
OBaseIdentifier(OrientSql p, int id)

Method Summary

Modifier and Type	Method and Description
boolean	allowsIndexedFunctionExecutionOnTarget(OFromClause target, OCommandContext context, OBinaryCompareOperator operator, Object right) tests if current expression is an indexed function AND that function can be used on this target
void	applyRemove(OResultInternal result, OCommandContext ctx)
boolean	canExecuteIndexedFunctionWithoutIndex(OFromClause target, OCommandContext context, OBinaryCompareOperator operator, Object right) tests if current expression is an indexed funciton AND that function can also be executed without using the index
OBaseIdentifier	copy()
void	deserialize(OResult fromResult)
boolean	equals(Object o)
long	estimateIndexedFunction(OFromClause target, OCommandContext context, OBinaryCompareOperator operator, Object right)
Object	execute(OIdentifiable iCurrentRecord, OCommandContext ctx)
Object	execute(OResult iCurrentRecord, OCommandContext ctx)
Iterable<OIdentifiable>	executeIndexedFunction(OFromClause target, OCommandContext context, OBinaryCompareOperator operator, Object right)
boolean	executeIndexedFunctionAfterIndexSearch(OFromClause target, OCommandContext context, OBinaryCompareOperator operator, Object right) tests if current expression is an indexed function AND the function has also to be executed after the index search.
void	extractSubQueries(OIdentifier letAlias, SubQueryCollector collector)
void	extractSubQueries(SubQueryCollector collector)
AggregationContext	getAggregationContext(OCommandContext ctx)
OCollate	getCollate(OResult currentRecord, OCommandContext ctx)
OExpression	getExpandContent()
OLevelZeroIdentifier	getLevelZero()
OSuffixIdentifier	getSuffix()
int	hashCode()
boolean	isAggregate()
boolean	isBaseIdentifier()
boolean	isCacheable()
boolean	isCount()
boolean	isDefinedFor(OElement currentRecord)
boolean	isDefinedFor(OResult currentRecord)
boolean	isEarlyCalculated(OCommandContext ctx)
boolean	isExpand()
boolean	isFunctionAny()
boolean	isIndexChain(OCommandContext ctx, OClass clazz)
boolean	isIndexedFunctionCall()
boolean	needsAliases(Set<String> aliases)
boolean	refersToParent()
OResult	serialize()
void	setLevelZero(OLevelZeroIdentifier levelZero)
SimpleNode	splitForAggregation(AggregateProjectionSplit aggregateProj, OCommandContext ctx)
void	toString(Map<Object,Object> params, StringBuilder builder)

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

childrenAccept, dump, getDatabase, 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

levelZero

protected OLevelZeroIdentifier levelZero

suffix

protected OSuffixIdentifier suffix

Constructor Detail

OBaseIdentifier

public OBaseIdentifier(int id)

OBaseIdentifier

public OBaseIdentifier(OrientSql p,
                       int id)

OBaseIdentifier

public OBaseIdentifier(OIdentifier identifier)

OBaseIdentifier

public OBaseIdentifier(ORecordAttribute attr)

Method Detail

toString

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

Overrides:

toString in class SimpleNode

execute

public Object execute(OIdentifiable iCurrentRecord,
                      OCommandContext ctx)

execute

public Object execute(OResult iCurrentRecord,
                      OCommandContext ctx)

isFunctionAny

public boolean isFunctionAny()

isIndexedFunctionCall

public boolean isIndexedFunctionCall()

estimateIndexedFunction

public long estimateIndexedFunction(OFromClause target,
                                    OCommandContext context,
                                    OBinaryCompareOperator operator,
                                    Object right)

executeIndexedFunction

public Iterable<OIdentifiable> executeIndexedFunction(OFromClause target,
                                                      OCommandContext context,
                                                      OBinaryCompareOperator operator,
                                                      Object right)

canExecuteIndexedFunctionWithoutIndex

public boolean canExecuteIndexedFunctionWithoutIndex(OFromClause target,
                                                     OCommandContext context,
                                                     OBinaryCompareOperator operator,
                                                     Object right)

tests if current expression is an indexed funciton AND that function can also be executed without using the index

Parameters:

target - the query target

context - the execution context

operator -

right -

Returns:

true if current expression is an indexed funciton AND that function can also be executed without using the index, false otherwise

allowsIndexedFunctionExecutionOnTarget

public boolean allowsIndexedFunctionExecutionOnTarget(OFromClause target,
                                                      OCommandContext context,
                                                      OBinaryCompareOperator operator,
                                                      Object right)

tests if current expression is an indexed function AND that function can be used on this target

Parameters:

target - the query target

context - the execution context

operator -

right -

Returns:

true if current expression involves an indexed function AND that function can be used on this target, false otherwise

executeIndexedFunctionAfterIndexSearch

public boolean executeIndexedFunctionAfterIndexSearch(OFromClause target,
                                                      OCommandContext context,
                                                      OBinaryCompareOperator operator,
                                                      Object right)

tests if current expression is an indexed function AND the function has also to be executed after the index search. In some cases, the index search is accurate, so this condition can be excluded from further evaluation. In other cases the result from the index is a superset of the expected result, so the function has to be executed anyway for further filtering

Parameters:

target - the query target

context - the execution context

Returns:

true if current expression is an indexed function AND the function has also to be executed after the index search.

isBaseIdentifier

public boolean isBaseIdentifier()

isExpand

public boolean isExpand()

getExpandContent

public OExpression getExpandContent()

needsAliases

public boolean needsAliases(Set<String> aliases)

isAggregate

public boolean isAggregate()

isCount

public boolean isCount()

isEarlyCalculated

public boolean isEarlyCalculated(OCommandContext ctx)

splitForAggregation

public SimpleNode splitForAggregation(AggregateProjectionSplit aggregateProj,
                                      OCommandContext ctx)

getAggregationContext

public AggregationContext getAggregationContext(OCommandContext ctx)

setLevelZero

public void setLevelZero(OLevelZeroIdentifier levelZero)

copy

public OBaseIdentifier copy()

Overrides:

copy in class SimpleNode

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

refersToParent

public boolean refersToParent()

getSuffix

public OSuffixIdentifier getSuffix()

getLevelZero

public OLevelZeroIdentifier getLevelZero()

applyRemove

public void applyRemove(OResultInternal result,
                        OCommandContext ctx)

serialize

public OResult serialize()

deserialize

public void deserialize(OResult fromResult)

isDefinedFor

public boolean isDefinedFor(OResult currentRecord)

isDefinedFor

public boolean isDefinedFor(OElement currentRecord)

extractSubQueries

public void extractSubQueries(OIdentifier letAlias,
                              SubQueryCollector collector)

extractSubQueries

public void extractSubQueries(SubQueryCollector collector)

getCollate

public OCollate getCollate(OResult currentRecord,
                           OCommandContext ctx)

isCacheable

public boolean isCacheable()

isIndexChain

public boolean isIndexChain(OCommandContext ctx,
                            OClass clazz)