public abstract class ChildFilterHelper
extends java.lang.Object
ChildFilterFactory
, which itself affects how child elements appear in a navigator. A helper is registered via a ChildFilterFactory
, which creates instances of ChildFilter configured with the helpers. Each instance of ChildFilterHelper registered with a ChildFilterFactory is shared by all instances of ChildFilter created by the factory. As a result of this, all ChildFilterHelper implementations must be stateless, determining all their behavior solely on immutable state, global state, or parameters passed via the Context
in initChildren(oracle.ide.Context, java.util.List)
.Constructor and Description |
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ChildFilterHelper() |
Modifier and Type | Method and Description |
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boolean |
handleChildrenAdded(Context context, java.util.List children, TNode parent, TreeExplorer tree) |
boolean |
handleChildrenRemoved(Context context, java.util.List children, TNode parent, TreeExplorer tree) |
abstract void |
initChildren(Context context, java.util.List children)
|
public abstract void initChildren(Context context, java.util.List children)
children
List with Element
instances that represent the root-level children of the project in the Context
. Flags that specify how the children should be rendered are passed through the Context.context
- The Context containing the project whose children need to be rendered. The Context may also contains flags specifying how the children should be rendered.children
- The List that the method should modify to pass the List of children back to the ProjectFilter. If multiple ChildFilterHelper are active at the same time, later helpers will see the result of earlier helpers in the children List.public boolean handleChildrenAdded(Context context, java.util.List children, TNode parent, TreeExplorer tree)
public boolean handleChildrenRemoved(Context context, java.util.List children, TNode parent, TreeExplorer tree)