Uses of Interface
org.apache.openjpa.persistence.query.SelectItem

Packages that use SelectItem

Package	Description
org.apache.openjpa.persistence.query	OpenJPA Dynamic Query

Uses of SelectItem in org.apache.openjpa.persistence.query

Subinterfaces of SelectItem in org.apache.openjpa.persistence.query

Modifier and Type	Interface	Description
interface	Aggregate	Type of the result of an aggregate operation
interface	DomainObject	Domain objects define the domain over which a query operates.
interface	Expression	Instances of this interface can be used either as select list items or as predicate operands.
interface	PathExpression	Interface for operations over objects reached via paths

Classes in org.apache.openjpa.persistence.query that implement SelectItem

Modifier and Type	Class	Description
class	AbsExpression	Denotes ABS() operation on a given expression.
class	AbstractDomainObject	Domain Object is a path expression over which query is evaluated.
class	ArrayExpression	A single expression that holds an array of values.
class	AverageExpression	Denotes AVG() on a given Expression.
class	BinaryOperatorExpression	An expression resulting from a binary operation on two expressions.
class	ConcatExpression	Denotes CONCAT(e1,e2,..)
class	CountExpression	Denotes COUNT(e) Expression.
class	CurrentTimeExpression	Denotes CURRENT_TIME(), CURRENT_DATE() and CURRENT_TIMESTAMP() expressions.
class	DistinctExpression	Denotes DISTINCT(e) Expression.
class	DividedByExpression	Denotes e1/e2 Expression.
class	ElseExpression	Else clause in a Case Statement.
class	EntryExpression	Denotes ENTRY(e) on a path.
class	FetchPath	Denotes a path used in fetch join.
class	IndexExpression	Denotes INDEX(e) Expression.
class	JoinPath	Path resulting by joining from a parent path via an attribute.
class	KeyExpression	Denotes KEY(e) Expression.
class	LengthExpression	Denotes LENGTH(e) Expression.
class	LiteralExpression	Denotes a Literal Expression.
class	LocateExpression	Denotes LOCATE(e1, e2, n) Expression.
class	LowerExpression	Denotes LOWER(e) Expression.
class	MaxExpression	Denotes MAX(e) Expression.
class	MinExpression	Denotes MIN(e) Expression.
class	MinusExpression	Denotes (e1 - e2) Expression.
class	NewInstance	Denotes NEW fully.qualified.class.name(arg1, arg2,...)
class	OperatorPath	A path resulting from KEY() or VALUE() operation on an existing path.
class	ParameterExpression	Denotes a parameter in a query.
class	PlusExpression	Denotes (e1 + e2) Expression.
class	QueryDefinitionImpl	Implements QueryDefinition.
class	RangeExpression	Denotes a range used by e1 BETWEEN x AND y operation.
class	RootPath	Denotes root domain instance representing a persistent type.
class	SizeExpression	Denotes SIZE(e) Expression.
class	SquareRootExpression	Denotes SQRT(e) Expression.
class	SubStringExpression	Denotes SUBSTR(a,i1,i2) Expression.
class	SumExpression	Denotes SUM(e) Expression.
class	TimesExpression	Denotes (e1*e2) Expression.
class	TrimExpression	Denotes TRIM(e1,x) Expression.
class	TypeExpression	Denotes TYPE(e) Expression.
class	UnaryMinusExpression	Denotes (-e) Expression.
class	UpperExpression	Denotes UPPER(e) Expression.
class	ValueExpression	Denotes VALUE(e) Expression.
class	VarArgsExpression	A expression that holds an array of Expressions.

Methods in org.apache.openjpa.persistence.query that return SelectItem

Modifier and Type	Method	Description
SelectItem	AbstractDomainObject.entry()	Derives by ENTRY() operation on this path.
SelectItem	DomainObject.entry()	Return a select item corresponding to the map entry of a map-valued association or element collection.
SelectItem	AbstractDomainObject.newInstance(java.lang.Class cls, SelectItem... args)
SelectItem	QueryDefinition.newInstance(java.lang.Class cls, SelectItem... args)	Specify that a constructor for the given class is to be applied to the corresponding query results after the query is executed.
SelectItem	QueryDefinitionImpl.newInstance(java.lang.Class cls, SelectItem... args)

Methods in org.apache.openjpa.persistence.query with parameters of type SelectItem

Modifier and Type	Method	Description
SelectItem	AbstractDomainObject.newInstance(java.lang.Class cls, SelectItem... args)
SelectItem	QueryDefinition.newInstance(java.lang.Class cls, SelectItem... args)	Specify that a constructor for the given class is to be applied to the corresponding query results after the query is executed.
SelectItem	QueryDefinitionImpl.newInstance(java.lang.Class cls, SelectItem... args)
QueryDefinition	AbstractDomainObject.select(SelectItem... selectItems)
QueryDefinition	QueryDefinition.select(SelectItem... selectItems)	Specify the objects / values to be returned.
QueryDefinition	QueryDefinitionImpl.select(SelectItem... items)
QueryDefinition	AbstractDomainObject.selectDistinct(SelectItem... selectItems)
QueryDefinition	QueryDefinition.selectDistinct(SelectItem... selectItems)	Specify the objects / values to be returned.
QueryDefinition	QueryDefinitionImpl.selectDistinct(SelectItem... items)

Method parameters in org.apache.openjpa.persistence.query with type arguments of type SelectItem

Modifier and Type	Method	Description
QueryDefinition	AbstractDomainObject.select(java.util.List<SelectItem> selectItemList)
QueryDefinition	QueryDefinition.select(java.util.List<SelectItem> selectItemList)	Specify the objects / values to be returned.
QueryDefinition	QueryDefinitionImpl.select(java.util.List<SelectItem> items)
QueryDefinition	AbstractDomainObject.selectDistinct(java.util.List<SelectItem> selectItemList)
QueryDefinition	QueryDefinition.selectDistinct(java.util.List<SelectItem> selectItemList)	Specify the objects / values to be returned.
QueryDefinition	QueryDefinitionImpl.selectDistinct(java.util.List<SelectItem> items)