de.intarsys.tools.functor

Class EmptyDeclarationBlock

java.lang.Object

de.intarsys.tools.functor.EmptyDeclarationBlock

All Implemented Interfaces:

IDeclaration, IDeclarationBlock

public class EmptyDeclarationBlock
extends java.lang.Object
implements IDeclarationBlock

Helper implementation for an empty declaration block.

Constructor Summary

Constructors

Constructor and Description
EmptyDeclarationBlock()

Method Summary

Modifier and Type	Method and Description
IFunctorCall	accept(IFunctorCall call) Apply this declaration to call.
java.lang.Object	getDeclarationContext() An optional declaration context.
IDeclaration[]	getDeclarations() The array of IDeclaration instances in this block.
boolean	isBlock() true if this declaration has child elements itself.
int	size() The number of declarations in this block.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EmptyDeclarationBlock

public EmptyDeclarationBlock()

Method Detail

accept

public IFunctorCall accept(IFunctorCall call)
                    throws DeclarationException

Description copied from interface: IDeclaration

Apply this declaration to call.

The semantics of this method is up to the designer.

Specified by:

accept in interface IDeclaration

Parameters:

call - The IFunctorCall to be modified.

Returns:

The modified or new IFunctorCall.

Throws:

DeclarationException

getDeclarationContext

public java.lang.Object getDeclarationContext()

Description copied from interface: IDeclaration

An optional declaration context. This may be for example the object that will launch the IFunctorCall later and has parsed some declarations on startup.

Specified by:

getDeclarationContext in interface IDeclaration

Returns:

An optional declaration context.

getDeclarations

public IDeclaration[] getDeclarations()

Description copied from interface: IDeclarationBlock

The array of IDeclaration instances in this block.

Specified by:

getDeclarations in interface IDeclarationBlock

Returns:

The array of IDeclaration instances in this block.

isBlock

public boolean isBlock()

Description copied from interface: IDeclaration

true if this declaration has child elements itself.

A IDeclarationElement may be a IDeclarationBlock, supporting nested declarations. You should not use "instanceof IDeclarationBlock" to check this behavior but this method.

Specified by:

isBlock in interface IDeclaration

Returns:

true if this declaration has child elements itself.

size

public int size()

Description copied from interface: IDeclarationBlock

The number of declarations in this block.

Specified by:

size in interface IDeclarationBlock

Returns:

The number of declarations in this block.