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

Packages that use SelectItem

Package	Description
org.apache.openjpa.persistence.query	OpenJPA Dynamic Query This package provides dynamic query construction that are similar to weakly-typed Criteria API.

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

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

Modifier and Type	Interface and 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 and 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 and Description
SelectItem	DomainObject.entry() Return a select item corresponding to the map entry of a map-valued association or element collection.
SelectItem	AbstractDomainObject.entry() Derives by ENTRY() operation on this path.
SelectItem	AbstractDomainObject.newInstance(Class cls, SelectItem... args)
SelectItem	QueryDefinitionImpl.newInstance(Class cls, SelectItem... args)
SelectItem	QueryDefinition.newInstance(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.

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

Modifier and Type	Method and Description
SelectItem	AbstractDomainObject.newInstance(Class cls, SelectItem... args)
SelectItem	QueryDefinitionImpl.newInstance(Class cls, SelectItem... args)
SelectItem	QueryDefinition.newInstance(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.
QueryDefinition	AbstractDomainObject.select(SelectItem... selectItems)
QueryDefinition	QueryDefinitionImpl.select(SelectItem... items)
QueryDefinition	QueryDefinition.select(SelectItem... selectItems) Specify the objects / values to be returned.
QueryDefinition	AbstractDomainObject.selectDistinct(SelectItem... selectItems)
QueryDefinition	QueryDefinitionImpl.selectDistinct(SelectItem... items)
QueryDefinition	QueryDefinition.selectDistinct(SelectItem... selectItems) Specify the objects / values to be returned.

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

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