org.nakedobjects.plugins.dnd.viewer.tree
Class OpenCollectionNodeSpecification

java.lang.Object
  org.nakedobjects.plugins.dnd.viewer.tree.CompositeNodeSpecification
      org.nakedobjects.plugins.dnd.viewer.tree.OpenCollectionNodeSpecification

All Implemented Interfaces:

CompositeViewSpecification, SubviewSpec, ViewSpecification

public class OpenCollectionNodeSpecification
extends CompositeNodeSpecification

Specification for a tree node that will display an open collection as a root node or within an object.

See Also:

for displaying a closed collection within an object.

Field Summary

static int	CAN_OPEN
static int	CANT_OPEN
static int	UNKNOWN

Fields inherited from class org.nakedobjects.plugins.dnd.viewer.tree.CompositeNodeSpecification

builder

Constructor Summary

OpenCollectionNodeSpecification()

Method Summary

boolean	canDisplay(Content content, ViewRequirement requirement) A collection tree can only be displayed for a collection that has elements.
int	canOpen(Content content)
View	createView(Content content, ViewAxis axis) Create a new view to this specification for the specified context, and using the specified axis if specified (which can be null).
java.lang.String	getName()
boolean	isAligned() Return true if the generated views are to have their sizes adjusted so they are consistent with surrounding views.
boolean	isOpen() Indicates whether views to this specification are open - displaying the attributes of the content object - or are closed - display only the title of the content object.
boolean	isReplaceable() Indicates whether this view can be replaced with another view (for the same value or reference).
boolean	isSubView()

Methods inherited from class org.nakedobjects.plugins.dnd.viewer.tree.CompositeNodeSpecification

createNodeView, createSubview, decorateSubview, getSubviewBuilder, setCollectionSubNodeSpecification, setObjectSubNodeSpecification

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.nakedobjects.plugins.dnd.ViewSpecification

createView, isAligned, isReplaceable

Field Detail

CAN_OPEN

public static final int CAN_OPEN

See Also:

Constant Field Values

CANT_OPEN

public static final int CANT_OPEN

See Also:

Constant Field Values

UNKNOWN

public static final int UNKNOWN

See Also:

Constant Field Values

Constructor Detail

OpenCollectionNodeSpecification

public OpenCollectionNodeSpecification()

Method Detail

canDisplay

public boolean canDisplay(Content content,
                          ViewRequirement requirement)

A collection tree can only be displayed for a collection that has elements.

isOpen

public boolean isOpen()

Description copied from interface: ViewSpecification

Indicates whether views to this specification are open - displaying the attributes of the content object - or are closed - display only the title of the content object.

Specified by:

isOpen in interface ViewSpecification

isSubView

public boolean isSubView()

Specified by:

isSubView in interface ViewSpecification

canOpen

public int canOpen(Content content)

getName

public java.lang.String getName()

createView

public final View createView(Content content,
                             ViewAxis axis)

Description copied from interface: ViewSpecification

Create a new view to this specification for the specified context, and using the specified axis if specified (which can be null).

Specified by:

createView in interface ViewSpecification

isAligned

public boolean isAligned()

Description copied from interface: ViewSpecification

Return true if the generated views are to have their sizes adjusted so they are consistent with surrounding views.

Specified by:

isAligned in interface ViewSpecification

isReplaceable

public boolean isReplaceable()

Description copied from interface: ViewSpecification

Indicates whether this view can be replaced with another view (for the same value or reference).

Specified by:

isReplaceable in interface ViewSpecification

Returns:

true if it can be replaced by another view; false if it can't be replaces