GWT 2.7.0

com.google.gwt.editor.client
Interface EditorContext<T>

Type Parameters:
T - The type of data edited by the Editor
All Known Implementing Classes:
FakeEditorContext

public interface EditorContext<T>

Describes an Editor within an Editor hierarchy.

See Also:
FakeEditorContext

Field Summary
static java.lang.String ROOT_PATH
           
 
Method Summary
 CompositeEditor<T,?,?> asCompositeEditor()
          Returns a non-null value if the editor returned by getEditor() implements CompositeEditor.
 HasEditorDelegate<T> asHasEditorDelegate()
          Returns a non-null value if the editor returned by getEditor() implements HasEditorDelegate.
 HasEditorErrors<T> asHasEditorErrors()
          Returns a non-null value if the editor returned by getEditor() implements HasEditorErrors.
 LeafValueEditor<T> asLeafValueEditor()
          Returns a non-null value if the editor returned by getEditor() implements LeafValueEditor.
 ValueAwareEditor<T> asValueAwareEditor()
          Returns a non-null value if the editor returned by getEditor() implements ValueAwareEditor.
 boolean canSetInModel()
          Returns true if setInModel(Object) can be called successfully.
 T checkAssignment(java.lang.Object value)
          Returns value cast to the type accepted by the Editor or throws a ClassCastException.
 java.lang.String getAbsolutePath()
          Returns the absolute path of the Editor within the hierarchy.
 java.lang.Class<T> getEditedType()
          Returns the T type.
 Editor<T> getEditor()
          Returns the associated Editor.
 EditorDelegate<T> getEditorDelegate()
          Returns the EditorDelegate associated with the current Editor, which may be null for LeafValueEditors.
 T getFromModel()
          Returns the value to be edited by the current editor.
 void setInModel(T data)
          Sets a new value in the data hierarchy being edited.
 void traverseSyntheticCompositeEditor(EditorVisitor visitor)
          Traverse an editor created by CompositeEditor.createEditorForTraversal() that reflects an uninitialized instance of a composite sub-editor.
 

Field Detail

ROOT_PATH

static final java.lang.String ROOT_PATH
See Also:
Constant Field Values
Method Detail

asCompositeEditor

CompositeEditor<T,?,?> asCompositeEditor()
Returns a non-null value if the editor returned by getEditor() implements CompositeEditor.


asHasEditorDelegate

HasEditorDelegate<T> asHasEditorDelegate()
Returns a non-null value if the editor returned by getEditor() implements HasEditorDelegate.


asHasEditorErrors

HasEditorErrors<T> asHasEditorErrors()
Returns a non-null value if the editor returned by getEditor() implements HasEditorErrors.


asLeafValueEditor

LeafValueEditor<T> asLeafValueEditor()
Returns a non-null value if the editor returned by getEditor() implements LeafValueEditor.


asValueAwareEditor

ValueAwareEditor<T> asValueAwareEditor()
Returns a non-null value if the editor returned by getEditor() implements ValueAwareEditor.


canSetInModel

boolean canSetInModel()
Returns true if setInModel(Object) can be called successfully.


checkAssignment

T checkAssignment(java.lang.Object value)
Returns value cast to the type accepted by the Editor or throws a ClassCastException.

Parameters:
value - any value, including null
Returns:
value cast to the T type
Throws:
java.lang.ClassCastException - if value is not assignable to the type T

getAbsolutePath

java.lang.String getAbsolutePath()
Returns the absolute path of the Editor within the hierarchy. This method should be preferred to calling getEditorDelegate().getPath() becasue not all LeafValueEditors are guaranteed to have an associated delegate.


getEditedType

java.lang.Class<T> getEditedType()
Returns the T type.


getEditor

Editor<T> getEditor()
Returns the associated Editor.


getEditorDelegate

EditorDelegate<T> getEditorDelegate()
Returns the EditorDelegate associated with the current Editor, which may be null for LeafValueEditors.


getFromModel

T getFromModel()
Returns the value to be edited by the current editor.


setInModel

void setInModel(T data)
Sets a new value in the data hierarchy being edited. The checkAssignment(Object) method may be used to avoid an unsafe generic cast.


traverseSyntheticCompositeEditor

void traverseSyntheticCompositeEditor(EditorVisitor visitor)
Traverse an editor created by CompositeEditor.createEditorForTraversal() that reflects an uninitialized instance of a composite sub-editor. This can be used to examine the internal structure of a CompositeEditor even if there are no data elements being edited by that editor.

Throws:
java.lang.IllegalStateException - if the current Editor is not a CompositeEditor

GWT 2.7.0