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

Packages that use PathExpression

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 PathExpression in org.apache.openjpa.persistence.query

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

Modifier and Type	Interface and Description
interface	DomainObject Domain objects define the domain over which a query operates.

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

Modifier and Type	Class and Description
class	AbstractDomainObject Domain Object is a path expression over which query is evaluated.
class	EntryExpression Denotes ENTRY(e) on a path.
class	FetchPath Denotes a path used in fetch join.
class	JoinPath Path resulting by joining from a parent path via an attribute.
class	KeyExpression Denotes KEY(e) Expression.
class	OperatorPath A path resulting from KEY() or VALUE() operation on an existing path.
class	RootPath Denotes root domain instance representing a persistent type.
class	ValueExpression Denotes VALUE(e) Expression.

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

Modifier and Type	Method and Description
PathExpression	AbstractDomainObject.get(String attr) Derives a path from this path by navigating through the given field.
PathExpression	PathExpression.get(String attributeName) Return a path expression corresponding to the referenced attribute.
PathExpression	DomainObject.key() Return a path expression corresponding to the key of a map-valued association or element collection.
PathExpression	AbstractDomainObject.key() Derives by KEY() operation on this path.
PathExpression	DomainObject.value() Return a path expression corresponding to the value of a map-valued association or element collection.
PathExpression	AbstractDomainObject.value() Derives a path by VALUE() operation on this path.

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

Modifier and Type	Method and Description
DomainObject	AbstractDomainObject.addSubqueryRoot(PathExpression path) Adding a query root adds a subquery to the owning query.
DomainObject	QueryDefinitionImpl.addSubqueryRoot(PathExpression path)
DomainObject	QueryDefinition.addSubqueryRoot(PathExpression path) Add a root derived from a domain object of the containing query definition to a query definition used as a subquery.
DomainObject	QueryBuilder.createSubqueryDefinition(PathExpression path) Create a query definition object whose root is derived from a domain object of the containing query.
DomainObject	QueryBuilderImpl.createSubqueryDefinition(PathExpression path) Creates a QueryDefinition that can be used a correlated subquery with the given path as domain.
QueryDefinition	AbstractDomainObject.groupBy(PathExpression... pathExprs)
QueryDefinition	QueryDefinitionImpl.groupBy(PathExpression... pathExprs)
QueryDefinition	QueryDefinition.groupBy(PathExpression... pathExprs) Specify the items that are used to form groups over the query results.
Predicate	Expression.member(PathExpression arg) Create a predicate for testing whether the expression is a member of the association or element collection denoted by the path expression.

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

Modifier and Type	Method and Description
QueryDefinition	AbstractDomainObject.groupBy(List<PathExpression> pathExprList)
QueryDefinition	QueryDefinitionImpl.groupBy(List<PathExpression> pathExprList)
QueryDefinition	QueryDefinition.groupBy(List<PathExpression> pathExprList) Specify the items that are used to form groups over the query results.