CaseExpression (OpenJPA Parent POM 2.1.0 API)

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org.apache.openjpa.persistence.query
Interface CaseExpression

All Known Implementing Classes:: CaseExpressionImpl

public interface CaseExpression

Interface for the construction of case expressions

Method Summary
`Expression`	`elseCase(Calendar arg)` Add else to a case expression.
`Expression`	`elseCase(Class arg)` Add else to a case expression.
`Expression`	`elseCase(Date arg)` Add else to a case expression.
`Expression`	`elseCase(Enum<?> arg)` Add else to a case expression.
`Expression`	`elseCase(Expression arg)` Add else to a case expression.
`Expression`	`elseCase(Number arg)` Add else to a case expression.
`Expression`	`elseCase(String arg)` Add else to a case expression.
`CaseExpression`	`then(Calendar then)` Add a then clause to a general or simple case expression.
`CaseExpression`	`then(Class then)` Add a then clause to a general or simple case expression.
`CaseExpression`	`then(Date then)` Add a then clause to a general or simple case expression.
`CaseExpression`	`then(Enum<?> then)` Add a then clause to a general or simple case expression.
`CaseExpression`	`then(Expression then)` Add a then clause to a general or simple case expression.
`CaseExpression`	`then(Number then)` Add a then clause to a general or simple case expression.
`CaseExpression`	`then(String then)` Add a then clause to a general or simple case expression.
`CaseExpression`	`when(Calendar when)` Add a when clause to a simple case expression.
`CaseExpression`	`when(Class when)` Add a when clause to a simple case expression.
`CaseExpression`	`when(Date when)` Add a when clause to a simple case expression.
`CaseExpression`	`when(Enum<?> when)` Add a when clause to a simple case expression.
`CaseExpression`	`when(Expression when)` Add a when clause to a simple case expression.
`CaseExpression`	`when(Number when)` Add a when clause to a simple case expression.
`CaseExpression`	`when(Predicate pred)` Add a when predicate clause to a general case expression.
`CaseExpression`	`when(String when)` Add a when clause to a simple case expression.

Method Detail

when

CaseExpression when(Predicate pred)

Add a when predicate clause to a general case expression. The when predicate must be followed by the corresponding then case expression that specifies the result of the specific case. Clauses are evaluated in the order added.

Parameters:: pred - - corresponds to the evaluation condition for the specific case
Returns:: CaseExpression corresponding to the case with the added when clause

when

CaseExpression when(Expression when)

Add a when clause to a simple case expression. The when case expression must be followed by the corresponding then case expression that specifies the result of the specific case. Clauses are evaluated in the order added

Parameters:: when - - corresponds to the value against which the case operand of the simple case is tested
Returns:: CaseExpression corresponding to the case with the added clause

when

CaseExpression when(Number when)

Parameters:: when - - corresponds to the value against which the case operand of the simple case is tested
Returns:: CaseExpression corresponding to the case with the added clause

when

CaseExpression when(String when)

Parameters:: when - - corresponds to the value against which the case operand of the simple case is tested
Returns:: CaseExpression corresponding to the case with the added clause

when

CaseExpression when(Date when)

Parameters:: when - - corresponds to the value against which the case operand of the simple case is tested
Returns:: CaseExpression corresponding to the case with the added clause

when

CaseExpression when(Calendar when)

Parameters:: when - - corresponds to the value against which the case operand of the simple case is tested
Returns:: CaseExpression corresponding to the case with the added clause

when

CaseExpression when(Class when)

Parameters:: when - - corresponds to the value against which the case operand of the simple case is tested
Returns:: CaseExpression corresponding to the case with the added clause

when

CaseExpression when(Enum<?> when)

Parameters:: when - - corresponds to the value against which the case operand of the simple case is tested
Returns:: CaseExpression corresponding to the case with the added clause