Package com.webmethods.caf.faces.data.tree.object

Class TreeContentProviderHelper

java.lang.Object

com.webmethods.caf.faces.data.tree.object.TreeContentProviderHelper

All Implemented Interfaces:

Serializable

public class TreeContentProviderHelper
extends Object
implements Serializable

Helps implement ITreeContentProvider.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<String,boolean[]>	m_lastChildAncestors	Temporary cache of String row ids, mapped to boolean[] open ancestors state.
protected Collection<String>	m_open
protected Collection<String>	m_unopen
protected boolean	m_useUnopen
protected Map<String,Boolean>	m_visibleAndOpenAncestors	Temporary cache of String row ids, mapped to Boolean visible-and-open ancestors state.
protected static final boolean[]	ZERO_BOOLEAN_ARRAY

Constructor Summary

Constructors

Constructor	Description
TreeContentProviderHelper()

Method Summary

Modifier and Type	Method	Description
int	getDepth(ITreeContentProvider provider)
boolean	getHasChildren(ITreeContentProvider provider)
boolean[]	getLastChildAncestors(ITreeContentProvider provider)
Collection<String>	getOpenIds(ITreeContentProvider provider)
Collection<String>	getUnopenIds(ITreeContentProvider provider)
boolean	getUseUnopenModel(ITreeContentProvider provider)
boolean	isOpen(ITreeContentProvider provider)
boolean	isVisible(ITreeContentProvider provider)
void	openTreeNodes(List roots, int depth)
void	refresh()	Notify the helper that some content may have changed.
void	setOpen(INode node, boolean open)
void	setOpen(ITreeContentProvider provider, boolean open)	Set the open state for the provider
void	setOpenIds(ITreeContentProvider provider, Collection<String> ids)
void	setUnopenIds(ITreeContentProvider provider, Collection<String> ids)

Methods inherited from class java.lang.Object

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

Field Details

ZERO_BOOLEAN_ARRAY

protected static final boolean[] ZERO_BOOLEAN_ARRAY

m_useUnopen

protected boolean m_useUnopen

m_open

protected Collection<String> m_open

m_unopen

protected Collection<String> m_unopen

m_lastChildAncestors

protected Map<String,boolean[]> m_lastChildAncestors

Temporary cache of String row ids, mapped to boolean[] open ancestors state.

m_visibleAndOpenAncestors

protected Map<String,Boolean> m_visibleAndOpenAncestors

Temporary cache of String row ids, mapped to Boolean visible-and-open ancestors state.

Constructor Details

TreeContentProviderHelper

public TreeContentProviderHelper()

Method Details

getDepth

public int getDepth(ITreeContentProvider provider)

Returns:

the length of provider's last child ancestors

See Also:

• ITreeContentProvider.getLastChildAncestors()

getHasChildren

public boolean getHasChildren(ITreeContentProvider provider)

Parameters:

provider -

Returns:

a flag indicates whether there is next child

See Also:

• ITreeContentProvider.getChildIds()

getLastChildAncestors

public boolean[] getLastChildAncestors(ITreeContentProvider provider)

See Also:

• ITreeContentProvider.getLastChildAncestors()

isOpen

public boolean isOpen(ITreeContentProvider provider)

See Also:

• ITreeContentProvider.isOpen()

setOpen

public void setOpen(ITreeContentProvider provider,
 boolean open)

Set the open state for the provider

Parameters:

provider -

open -

See Also:

• ITreeContentProvider.setOpen(boolean)

setOpen

public void setOpen(INode node,
 boolean open)

isVisible

public boolean isVisible(ITreeContentProvider provider)

Parameters:

provider -

Returns:

a flag indicates whether current row is visible for the provider

getOpenIds

public Collection<String> getOpenIds(ITreeContentProvider provider)

setOpenIds

public void setOpenIds(ITreeContentProvider provider,
 Collection<String> ids)

getUseUnopenModel

public boolean getUseUnopenModel(ITreeContentProvider provider)

getUnopenIds

public Collection<String> getUnopenIds(ITreeContentProvider provider)

setUnopenIds

public void setUnopenIds(ITreeContentProvider provider,
 Collection<String> ids)

refresh

public void refresh()

Notify the helper that some content may have changed.

openTreeNodes

public void openTreeNodes(List roots,
 int depth)