ParameterTypeVisitor (Oracle Fusion Middleware Java API Reference for Oracle TopLink)

Field Summary
`private Expression`	`currentExpression` This is used to prevent an infinite loop between input parameters.
`private Expression`	`expression` The `Expression` that will help to determine the type of the input parameter.
`private boolean`	`ignoreType` Used to ignore the type when calculating it.
`private InputParameter`	`inputParameter` The `InputParameter` for which its type will be searched by visiting the query.
`private JPQLQueryContext`	`queryContext` The context used to query information about the query.
`private java.lang.Class<?>`	`type` The well defined type, which does not have to be calculated.

Constructor Summary
`ParameterTypeVisitor(JPQLQueryContext queryContext)` Creates a new `ParameterTypeVisitor`.

Method Summary
`(package private) void`	`dispose()` Disposes this visitor.
`(package private) IType`	`getType()` Returns the type, if it can be determined, of the input parameter.
`void`	`visit(AbsExpression expression)` Visits the `AbsExpression` expression.
`void`	`visit(AdditionExpression expression)` Visits the `AdditionExpression` expression.
`void`	`visit(AndExpression expression)` Visits the `AndExpression` expression.
`void`	`visit(AvgFunction expression)` Visits the `AvgFunction` expression.
`void`	`visit(BetweenExpression expression)` Visits the `BetweenExpression` expression.
`void`	`visit(CollectionValuedPathExpression expression)` Visits the `CollectionValuedPathExpression` expression.
`void`	`visit(ComparisonExpression expression)` Visits the `ComparisonExpression` expression.
`void`	`visit(ConcatExpression expression)` Visits the `ConcatExpression` expression.
`void`	`visit(CountFunction expression)` Visits the `CountFunction` expression.
`void`	`visit(DivisionExpression expression)` Visits the `DivisionExpression` expression.
`void`	`visit(EmptyCollectionComparisonExpression expression)` Visits the `EmptyCollectionComparisonExpression` expression.
`void`	`visit(ExistsExpression expression)` Visits the `ExistsExpression` expression.
`void`	`visit(IdentificationVariable expression)` Visits the `IdentificationVariable` expression.
`void`	`visit(InExpression expression)` Visits the `InExpression` expression.
`void`	`visit(InputParameter expression)` Visits the `InputParameter` expression.
`void`	`visit(LengthExpression expression)` Visits the `LengthExpression` expression.
`void`	`visit(LikeExpression expression)` Visits the `LikeExpression` expression.
`void`	`visit(LowerExpression expression)` Visits the `LowerExpression` expression.
`void`	`visit(MaxFunction expression)` Visits the `MaxFunction` expression.
`void`	`visit(MinFunction expression)` Visits the `MinFunction` expression.
`void`	`visit(ModExpression expression)` Visits the `ModExpression` expression.
`void`	`visit(MultiplicationExpression expression)` Visits the `MultiplicationExpression` expression.
`void`	`visit(NullComparisonExpression expression)` Visits the `NullComparisonExpression` expression.
`void`	`visit(NumericLiteral expression)` Visits the `NumericLiteral` expression.
`void`	`visit(OrExpression expression)` Visits the `OrExpression` expression.
`void`	`visit(SizeExpression expression)` Visits the `SizeExpression` expression.
`void`	`visit(SqrtExpression expression)` Visits the `SqrtExpression` expression.
`void`	`visit(StateFieldPathExpression expression)` Visits the `StateFieldPathExpression` expression.
`void`	`visit(SubstringExpression expression)` Visits the `SubstringExpression` expression.
`void`	`visit(SubtractionExpression expression)` Visits the `SubtractionExpression` expression.
`void`	`visit(SumFunction expression)` Visits the `SumFunction` expression.
`void`	`visit(TrimExpression expression)` Visits the `TrimExpression` expression.
`void`	`visit(UpdateItem expression)` Visits the `UpdateItem` expression.
`private void`	`visitCompoundExpression(CompoundExpression expression)`

Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.parser.AbstractTraverseParentVisitor
`visit, visit`

Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.parser.AnonymousExpressionVisitor
`visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

currentExpression

private Expression currentExpression

This is used to prevent an infinite loop between input parameters. Example: ":arg1 = :arg2".

expression

private Expression expression

The Expression that will help to determine the type of the input parameter.

ignoreType

private boolean ignoreType

Used to ignore the type when calculating it. If Object.class was used, then it could incorrectly calculate the type. Example: ":arg = 'JPQL' AND :arg IS NULL", the second :arg should be ignored.

inputParameter

private InputParameter inputParameter

The InputParameter for which its type will be searched by visiting the query.

queryContext

private final JPQLQueryContext queryContext

The context used to query information about the query.

type

private java.lang.Class<?> type

The well defined type, which does not have to be calculated.

Constructor Detail