Visitable (OpenJPA Parent POM 4.0.0 API)

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

AbsExpression, AbstractDomainObject, AndPredicate, ArrayExpression, AverageExpression, BetweenExpression, BinaryOperatorExpression, CaseExpressionImpl, ConcatExpression, CountExpression, CurrentTimeExpression, DistinctExpression, DividedByExpression, ElseExpression, EntryExpression, EqualExpression, ExistsExpression, FetchPath, GreaterEqualExpression, GreaterThanExpression, IndexExpression, InExpression, IsEmptyExpression, IsNullExpression, JoinPath, KeyExpression, LengthExpression, LessEqualExpression, LessThanExpression, LikeExpression, LiteralExpression, LocateExpression, LogicalPredicate, LowerExpression, MaxExpression, MemberOfExpression, MinExpression, MinusExpression, NewInstance, NotEqualExpression, OperatorPath, OrderableItem, OrPredicate, ParameterExpression, PlusExpression, QueryDefinitionImpl, RangeExpression, RootPath, SizeExpression, SquareRootExpression, SubStringExpression, SumExpression, TimesExpression, TrimExpression, TypeExpression, UnaryMinusExpression, UpperExpression, ValueExpression, VarArgsExpression
```
public interface Visitable
extends java.io.Serializable
```
An element of query that is convertible to a JPQL String given a aliasing scheme. QueryDefinition visits each of its element and translates them.

Author:

Pinaki Poddar

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.String`	`asExpression(org.apache.openjpa.persistence.query.AliasContext ctx)`	Get a JPQL fragment as used in WHERE clause.
`java.lang.String`	`asJoinable(org.apache.openjpa.persistence.query.AliasContext ctx)`	Gets the string representation in FROM clause.
`java.lang.String`	`asProjection(org.apache.openjpa.persistence.query.AliasContext ctx)`	Gets the string representation in SELECT projection.
`java.lang.String`	`getAliasHint(org.apache.openjpa.persistence.query.AliasContext ctx)`	Gets the hint to be used while creating alias.

Method Detail

asExpression

java.lang.String asExpression(org.apache.openjpa.persistence.query.AliasContext ctx)

Get a JPQL fragment as used in WHERE clause.

asProjection

java.lang.String asProjection(org.apache.openjpa.persistence.query.AliasContext ctx)

Gets the string representation in SELECT projection.

asJoinable

java.lang.String asJoinable(org.apache.openjpa.persistence.query.AliasContext ctx)

Gets the string representation in FROM clause.

getAliasHint

java.lang.String getAliasHint(org.apache.openjpa.persistence.query.AliasContext ctx)

Gets the hint to be used while creating alias.