ParameterVisitor (Oracle OLAP Java API Reference)

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Oracle® OLAP Java API Reference
12c Release 1 (12.1)
E17708-05

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oracle.olapi.data.source
Class ParameterVisitor

java.lang.Object oracle.olapi.data.source.ParameterVisitor

public abstract class ParameterVisitor

extends java.lang.Object

A visitor object that can execute operations on Parameter objects. A ParameterVisitor can implement polymorphic behavior without having access to the internal code of the Parameter subclasses.

Constructor Summary
`ParameterVisitor()`

Method Summary
`java.lang.Object`	`visitBooleanParameter(BooleanParameter param, java.lang.Object context)` Executes operations on the specified `BooleanParameter`.
`java.lang.Object`	`visitDateParameter(DateParameter param, java.lang.Object context)` Executes operations on the specified `DateParameter`.
`java.lang.Object`	`visitNumberParameter(NumberParameter param, java.lang.Object context)` Executes operations on the specified `NumberParameter`.
`java.lang.Object`	`visitParameter(Parameter param, java.lang.Object context)` Executes operations on any object that is a subclass of `Parameter`, which is useful when you do not need subclass-specific information.
`java.lang.Object`	`visitStringParameter(StringParameter param, java.lang.Object context)` Executes operations on the specified `StringParameter`.

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

Constructor Detail

ParameterVisitor

public ParameterVisitor()

Method Detail

visitParameter

public java.lang.Object visitParameter(Parameter param,
                                       java.lang.Object context)

Executes operations on any object that is a subclass of Parameter, which is useful when you do not need subclass-specific information. The default implementation of this method returns null.

Parameters:: param - A Parameter object.; context - An Object.
Returns:: An Object.

visitStringParameter

public java.lang.Object visitStringParameter(StringParameter param,
                                             java.lang.Object context)

Executes operations on the specified StringParameter. The default implementation of this method calls the visitParameter method.

Parameters:: param - A StringParameter object.; context - An Object.
Returns:: An Object.

visitDateParameter

public java.lang.Object visitDateParameter(DateParameter param,
                                           java.lang.Object context)

Executes operations on the specified DateParameter. The default implementation of this method calls the visitParameter method.

Parameters:: param - A DateParameter object.; context - An Object.
Returns:: An Object.

visitBooleanParameter

public java.lang.Object visitBooleanParameter(BooleanParameter param,
                                              java.lang.Object context)

Executes operations on the specified BooleanParameter. The default implementation of this method calls the visitParameter method.

Parameters:: param - A BooleanParameter object.; context - An Object.
Returns:: An Object.

visitNumberParameter

public java.lang.Object visitNumberParameter(NumberParameter param,
                                             java.lang.Object context)

Executes operations on the specified NumberParameter. The default implementation of this method calls the visitParameter method.

Parameters:: param - A NumberParameter object.; context - An Object.
Returns:: An Object.