org.kuali.rice.krad.uif.view
Class ViewIndex

java.lang.Object
  org.kuali.rice.krad.uif.view.ViewIndex

All Implemented Interfaces:

Serializable

public class ViewIndex
extends Object
implements Serializable

Holds component indexes of a View instance for convenient retrieval during the lifecycle.

Author:

Kuali Rice Team (rice.collab@kuali.org)

See Also:

Serialized Form

Constructor Summary

ViewIndex()
Default Constructor.

Method Summary

protected void	clearIndex(View view) Clears view indexes, for reinitializing indexes at the start of each phase.
ViewIndex	copy() Returns a clone of the view index.
CollectionGroup	getCollectionGroupByPath(String collectionPath) Retrieves a CollectionGroup instance from the index
Map<String,CollectionGroup>	getCollectionsIndex() Gets the Map that contains collection indexing information.
Component	getComponentById(String id) Retrieves a Component from the view index by Id
DataField	getDataFieldByPath(String propertyPath) Retrieves a DataField instance from the index
DataField	getDataFieldByPropertyName(String propertyName) Retrieves a DataField instance that has the given property name specified (note this is not the full binding path and first match is returned)
Map<String,DataField>	getDataFieldIndex() Gets the Map that contains attribute field indexing information.
LifecycleElement	getLifecycleElementByPath(String path) Gets a lifecycle element instance by the given path (relative to the view).
Map<String,LifecycleElement>	getLifecycleElementsByPath() Gets the Map of lifecycle elements that are indexed by their path relative to the view.
void	indexComponent(Component component) Adds an entry to the main index for the given component.
boolean	observeAssignedId(String id) Observe an assigned ID.

Methods inherited from class java.lang.Object

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

Constructor Detail

ViewIndex

public ViewIndex()

Default Constructor.

Method Detail

clearIndex

protected void clearIndex(View view)

Clears view indexes, for reinitializing indexes at the start of each phase.

indexComponent

public void indexComponent(Component component)

Adds an entry to the main index for the given component. If the component is of type DataField or CollectionGroup an entry is created in the corresponding indexes for those types as well. Then the #indexComponent method is called for each of the component's children

If the component is already contained in the indexes, it will be replaced

DataField instances are indexed by the attribute path. This is useful for retrieving the InputField based on the incoming request parameter

CollectionGroup instances are indexed by the collection path. This is useful for retrieving the CollectionGroup based on the incoming request parameter

Parameters:

component - component instance to index

observeAssignedId

public boolean observeAssignedId(String id)

Observe an assigned ID.

Parameters:

id - ID to observe

Returns:

true if the ID is unique, false if the ID has already been observed

getComponentById

public Component getComponentById(String id)

Retrieves a Component from the view index by Id

Parameters:

id - id for the component to retrieve

Returns:

Component instance found in index, or null if no such component exists

getDataFieldByPath

public DataField getDataFieldByPath(String propertyPath)

Retrieves a DataField instance from the index

Parameters:

propertyPath - full path of the data field (from the form)

Returns:

DataField instance for the path or Null if not found

getDataFieldByPropertyName

public DataField getDataFieldByPropertyName(String propertyName)

Retrieves a DataField instance that has the given property name specified (note this is not the full binding path and first match is returned)

Parameters:

propertyName - property name for field to retrieve

Returns:

DataField instance found or null if not found

getLifecycleElementsByPath

public Map<String,LifecycleElement> getLifecycleElementsByPath()

Gets the Map of lifecycle elements that are indexed by their path relative to the view.

Returns:

map of all indexed lifecycle elements, key is the element path and value is the element instance

getLifecycleElementByPath

public LifecycleElement getLifecycleElementByPath(String path)

Gets a lifecycle element instance by the given path (relative to the view).

Parameters:

path - path of the element that should be returned

Returns:

lifecycle element instance for given path or null if element at that path does not exist

getDataFieldIndex

public Map<String,DataField> getDataFieldIndex()

Gets the Map that contains attribute field indexing information. The Map key points to an attribute binding path, and the Map value is the DataField instance

Returns:

data fields index map

getCollectionsIndex

public Map<String,CollectionGroup> getCollectionsIndex()

Gets the Map that contains collection indexing information. The Map key gives the binding path to the collection, and the Map value givens the CollectionGroup instance

Returns:

collection index map

getCollectionGroupByPath

public CollectionGroup getCollectionGroupByPath(String collectionPath)

Retrieves a CollectionGroup instance from the index

Parameters:

collectionPath - full path of the collection (from the form)

Returns:

CollectionGroup instance for the collection path or Null if not found

copy

public ViewIndex copy()

Returns a clone of the view index.

Returns:

ViewIndex clone