de.intarsys.tools.functor

Class DeclarationBlock

java.lang.Object

de.intarsys.tools.functor.Declaration

de.intarsys.tools.functor.DeclarationBlock

All Implemented Interfaces:

IDeclaration, IDeclarationBlock

public class DeclarationBlock
extends Declaration
implements IDeclarationBlock

A generic implementation for IDeclarationBlock.

Field Summary

Fields

Modifier and Type	Field and Description
static IDeclarationBlock	EMPTY

Constructor Summary

Constructors

Constructor and Description
DeclarationBlock(java.lang.Object declarationContext)
DeclarationBlock(java.lang.Object declarationContext, IDeclaration[] declarations)

Method Summary

Modifier and Type	Method and Description
IFunctorCall	accept(IFunctorCall call) Apply this declaration to call.
void	addDeclaration(IDeclaration declaration)
IDeclaration[]	getDeclarations() The array of IDeclaration instances in this block.
boolean	isBlock() true if this declaration has child elements itself.
boolean	removeDeclaration(IDeclaration declaration)
int	size() The number of declarations in this block.

Methods inherited from class de.intarsys.tools.functor.Declaration

getDeclarationContext

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.intarsys.tools.functor.IDeclaration

getDeclarationContext

Field Detail

EMPTY

public static final IDeclarationBlock EMPTY

Constructor Detail

DeclarationBlock

public DeclarationBlock(java.lang.Object declarationContext)

DeclarationBlock

public DeclarationBlock(java.lang.Object declarationContext,
                        IDeclaration[] declarations)

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

addDeclaration

public void addDeclaration(IDeclaration declaration)

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

Overrides:

isBlock in class Declaration

Returns:

true if this declaration has child elements itself.

removeDeclaration

public boolean removeDeclaration(IDeclaration declaration)

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.