Package com.arcadedb.query.sql.parser

Class ProjectionItem

java.lang.Object

com.arcadedb.query.sql.parser.SimpleNode

com.arcadedb.query.sql.parser.ProjectionItem

All Implemented Interfaces:

Node

public class ProjectionItem
extends SimpleNode

Field Summary

Fields

Modifier and Type	Field	Description
protected Boolean	aggregate
protected Identifier	alias
protected boolean	all
protected boolean	exclude
protected Expression	expression
protected NestedProjection	nestedProjection

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

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

Constructor Summary

Constructors

Constructor	Description
ProjectionItem(int id)
ProjectionItem(Expression expression, Identifier alias, NestedProjection nestedProjection)
ProjectionItem(SqlParser p, int id)

Method Summary

Modifier and Type	Method	Description
Object	convert(Object value)
ProjectionItem	copy()
void	deserialize(Result fromResult)
boolean	equals(Object o)
Object	execute(Record iCurrentRecord, CommandContext ctx)
Object	execute(Result iCurrentRecord, CommandContext ctx)
void	extractSubQueries(SubQueryCollector collector)
AggregationContext	getAggregationContext(CommandContext ctx)
Identifier	getAlias()
ProjectionItem	getExpandContent()
Expression	getExpression()
Identifier	getProjectionAlias()
String	getProjectionAliasAsString()	returns the final alias for this projection item (the explicit alias, if defined, or the default alias)
int	hashCode()
boolean	isAggregate()
boolean	isAll()
boolean	isCacheable()
boolean	isExpand()
boolean	refersToParent()
Result	serialize()
void	setAlias(Identifier alias)
void	setAll(boolean all)
void	setExpression(Expression expression)
void	setNestedProjection(NestedProjection nestedProjection)
ProjectionItem	splitForAggregation(AggregateProjectionSplit aggregateSplit)	INTERNAL USE ONLY this has to be invoked ONLY if the item is aggregate!!!
void	toString(Map<String,Object> params, StringBuilder builder)

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

exclude

protected boolean exclude

all

protected boolean all

alias

protected Identifier alias

expression

protected Expression expression

aggregate

protected Boolean aggregate

nestedProjection

protected NestedProjection nestedProjection

Constructor Detail

ProjectionItem

public ProjectionItem(Expression expression,
                      Identifier alias,
                      NestedProjection nestedProjection)

ProjectionItem

public ProjectionItem(int id)

ProjectionItem

public ProjectionItem(SqlParser p,
                      int id)

Method Detail

isAll

public boolean isAll()

setAll

public void setAll(boolean all)

getAlias

public Identifier getAlias()

setAlias

public void setAlias(Identifier alias)

getExpression

public Expression getExpression()

setExpression

public void setExpression(Expression expression)

toString

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

Overrides:

toString in class SimpleNode

execute

public Object execute(Record iCurrentRecord,
                      CommandContext ctx)

convert

public Object convert(Object value)

execute

public Object execute(Result iCurrentRecord,
                      CommandContext ctx)

getProjectionAliasAsString

public String getProjectionAliasAsString()

returns the final alias for this projection item (the explicit alias, if defined, or the default alias)

Returns:

the final alias for this projection item

getProjectionAlias

public Identifier getProjectionAlias()

isExpand

public boolean isExpand()

getExpandContent

public ProjectionItem getExpandContent()

isAggregate

public boolean isAggregate()

splitForAggregation

public ProjectionItem splitForAggregation(AggregateProjectionSplit aggregateSplit)

INTERNAL USE ONLY this has to be invoked ONLY if the item is aggregate!!!

Parameters:

aggregateSplit -

getAggregationContext

public AggregationContext getAggregationContext(CommandContext ctx)

copy

public ProjectionItem 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

extractSubQueries

public void extractSubQueries(SubQueryCollector collector)

refersToParent

public boolean refersToParent()

serialize

public Result serialize()

deserialize

public void deserialize(Result fromResult)

setNestedProjection

public void setNestedProjection(NestedProjection nestedProjection)

isCacheable

public boolean isCacheable()