oracle.jbo.uicli.jui
Class JUTreeBinding

java.lang.Object
  |
  +--oracle.jbo.uicli.binding.JUControlBinding
        |
        +--oracle.jbo.uicli.binding.JUCtrlValueBinding
              |
              +--oracle.jbo.uicli.binding.JUCtrlRangeBinding
                    |
                    +--oracle.jbo.uicli.binding.JUCtrlHierBinding
                          |
                          +--oracle.jbo.uicli.jui.JUTreeBinding

All Implemented Interfaces:

AttributeList, java.util.EventListener, javax.swing.event.TreeExpansionListener, javax.swing.tree.TreeModel, javax.swing.event.TreeSelectionListener

public class JUTreeBinding

extends JUCtrlHierBinding

implements javax.swing.event.TreeExpansionListener, javax.swing.event.TreeSelectionListener, javax.swing.tree.TreeModel

A lightweight Document model that implements binding a javax.swing.JTree to a BC4J RowIterator and display a selected attribute. Each tree node may display a set of child nodes bound to another Iterator that's retrieved via an accessor on the rows of the first iterator.

This binding allows Trees that can have two types of nodes:

JUTreeAccessorTypeBinding - that display a selected attribute for all rows of a ViewObject/Iterator and on expansion, expand the same accessor for all rows.

JUTreeDiscrAttrTypeBinding - that allow displaying different attributes for each row of a ViewObject/Iterator determined by a unique value of the same or a different attribute in the same row, and on expansion, potentially expands to display rows from a different accessor for each row based on the discriminator attribute value. This type of node binding can be used to display polymorphic Rows in a ViewObject or display different attributes/accessors for each row based on the discriminator attribute value on that row, e.g., For an EmpView, display EmployeeSal for all Employees of deptid=10 while display EmployeeRate for all Employees of deptid=20 and so on.

See Also:

RowIterator, JTree, TreeModel, TreeNode

Fields inherited from class oracle.jbo.uicli.binding.JUCtrlHierBinding

mTypeBindings

Constructor Summary

JUTreeBinding(javax.swing.JTree tr, JUIteratorBinding iterBinding, JUCtrlHierTypeBinding[] typeBindings)
This constructor binds a JTree with Rows from a given JUIteratorBinding and displays data as per the node-types passed in typeBindings.

JUTreeBinding(javax.swing.JTree tr, JUIteratorBinding iterBinding, java.lang.String attrName, JUCtrlHierTypeBinding[] typeBindings)
*** For internal framework use only ***

Method Summary

Type	Method
void	addControlToPanel(java.lang.Object panel, java.lang.Object layoutObject, java.lang.Object layoutCons) *** For internal framework use only ***
void	addTreeModelListener(javax.swing.event.TreeModelListener l)
static javax.swing.tree.DefaultTreeModel	createTreeNodeTypeBinding(JUFormBinding formBinding, javax.swing.JTree control, java.lang.String voInstanceName, java.lang.String voIterName, java.lang.String voIterBindingName, JUCtrlHierTypeBinding[] nodeBindings) This method is used by the JClient model-binding editors to bind a JTree to this binding.
java.lang.String[]	getAttributeNames() Returns the attribute that's displayed in the first level nodes of this tree.
java.lang.Object	getChild(java.lang.Object parent, int index)
int	getChildCount(java.lang.Object parent)
int	getIndexOfChild(java.lang.Object parent, java.lang.Object child)
static javax.swing.tree.DefaultTreeModel	getInstance(JUFormBinding formBinding, javax.swing.JTree control, java.lang.String voInstanceName, java.lang.String voIterName, java.lang.String voIterBindingName, JUCtrlHierTypeBinding[] nodeBindings) Deprecated. since 9.0.2
java.lang.Object	getLayoutObject() *** For internal framework use only ***
protected javax.swing.tree.DefaultTreeModel	getModelImpl(javax.swing.JTree control) Returns the TreeModel that the associated JTree is bound to.
java.lang.Object	getRoot()
JUTreeNodeBinding	getRootBinding() Returns the root node binding that contains the iterator that the root node is displaying
java.lang.Object	getValueAt(int rowIndex, int attrIndex) Returns null, as tree is not implemented to return attribute values for a given Row.
boolean	isLeaf(java.lang.Object node)
void	removeTreeModelListener(javax.swing.event.TreeModelListener l)
void	setLayoutObject(javax.swing.JScrollPane scrollPane) *** For internal framework use only ***
void	setValueAt(java.lang.Object value, int rowIndex, int attrIndex) This method is a noop.
void	treeCollapsed(javax.swing.event.TreeExpansionEvent e)
void	treeExpanded(javax.swing.event.TreeExpansionEvent e)
void	updateValuesFromRows(Row[] rows, boolean clear) Updates the nodes in the tree based on the given set of rows.
void	valueChanged(javax.swing.event.TreeSelectionEvent e)
void	valueForPathChanged(javax.swing.tree.TreePath path, java.lang.Object newValue)

Methods inherited from class oracle.jbo.uicli.binding.JUCtrlHierBinding

getTypeBindings

Methods inherited from class oracle.jbo.uicli.binding.JUCtrlRangeBinding

getEstimatedRowCount, updateNavigated, updateRangeScrolled, updateValuesFromRow

Methods inherited from class oracle.jbo.uicli.binding.JUCtrlValueBinding

findAttributeDef, getAttribute, getAttribute, getAttributeCount, getAttributeDef, getAttributeDefs, getAttributeFromRow, getAttributeFromRow, getAttributeFromRow, getAttributeFromRow, getAttributeFromRow, getAttributeIndexOf, isAttributeUpdateable, setAttribute, setAttribute, setAttributeInRow, setAttributeInRow, setAttributeInRow, setAttributeInRow, setAttributeInRow, setAttributeInRow, stopEditing, updateRowDeleted, updateRowInserted

Methods inherited from class oracle.jbo.uicli.binding.JUControlBinding

executeQuery, executeQueryIfNeeded, getAllRowsInRange, getApplicationModule, getControl, getCurrentRow, getDef, getFormBinding, getIteratorBinding, getName, getRowAtRangeIndex, getRowIterator, getTransaction, getViewObject, isControlQueriable, reportException, setFormBinding, setName

Methods inherited from class java.lang.Object

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

Constructor Detail

JUTreeBinding

public JUTreeBinding(javax.swing.JTree tr,
                     JUIteratorBinding iterBinding,
                     JUCtrlHierTypeBinding[] typeBindings)

This constructor binds a JTree with Rows from a given JUIteratorBinding and displays data as per the node-types passed in typeBindings.

JUTreeBinding

public JUTreeBinding(javax.swing.JTree tr,
                     JUIteratorBinding iterBinding,
                     java.lang.String attrName,
                     JUCtrlHierTypeBinding[] typeBindings)

*** For internal framework use only ***

Method Detail

createTreeNodeTypeBinding

public static javax.swing.tree.DefaultTreeModel createTreeNodeTypeBinding(JUFormBinding formBinding,
                                                                          javax.swing.JTree control,
                                                                          java.lang.String voInstanceName,
                                                                          java.lang.String voIterName,
                                                                          java.lang.String voIterBindingName,
                                                                          JUCtrlHierTypeBinding[] nodeBindings)

This method is used by the JClient model-binding editors to bind a JTree to this binding. The rules for ViewObjects that will be displayed in this binding are passed in the nodeBindings array.

The rules the govern the node bindings are:

Each ViewObject in the tree can either be displayed using a JUTreeAccessorTypeBinding or a JUTreeDiscrAttrTypeBinding.

JUTreeAccessorTypeBinding takes precedence

Only one attribute is displayed for each node based on the attribute setting in the corresponding JUCtrlHierTypeBinding object.

Only one accessor is expanded for each node based on the accessor setting in the corresponding JUCtrlHierTypeBinding object.

The order of nodes determine the search order for discriminator values in case of JUTreeDiscrAttrTypeBinding bindings and the first matching value determines the attribute and accessor for that node.

getInstance

public static javax.swing.tree.DefaultTreeModel getInstance(JUFormBinding formBinding,
                                                            javax.swing.JTree control,
                                                            java.lang.String voInstanceName,
                                                            java.lang.String voIterName,
                                                            java.lang.String voIterBindingName,
                                                            JUCtrlHierTypeBinding[] nodeBindings)

Deprecated. since 9.0.2

getModelImpl

protected javax.swing.tree.DefaultTreeModel getModelImpl(javax.swing.JTree control)

Returns the TreeModel that the associated JTree is bound to. Unlinke JUTableBinding, tree binding does not implement a custom TreeModel, but rather reuses the existing TreeModel in JTree and simply attaches itself as an associate to the TreeModel and passes BC4J data to it.

addControlToPanel

public void addControlToPanel(java.lang.Object panel,
                              java.lang.Object layoutObject,
                              java.lang.Object layoutCons)

*** For internal framework use only ***

Overrides:

addControlToPanel in class JUControlBinding

getLayoutObject

public java.lang.Object getLayoutObject()

*** For internal framework use only ***

Overrides:

getLayoutObject in class JUControlBinding

setLayoutObject

public void setLayoutObject(javax.swing.JScrollPane scrollPane)

*** For internal framework use only ***

getValueAt

public java.lang.Object getValueAt(int rowIndex,
                                   int attrIndex)

Returns null, as tree is not implemented to return attribute values for a given Row. The displayed value is accessible via the TreeModel.

Overrides:

getValueAt in class JUCtrlRangeBinding

setValueAt

public void setValueAt(java.lang.Object value,
                       int rowIndex,
                       int attrIndex)

This method is a noop. JUTreeBinding is currently only a readonly binding

Overrides:

setValueAt in class JUCtrlRangeBinding

getAttributeNames

public java.lang.String[] getAttributeNames()

Returns the attribute that's displayed in the first level nodes of this tree.

Overrides:

getAttributeNames in class JUCtrlValueBinding

updateValuesFromRows

public void updateValuesFromRows(Row[] rows,
                                 boolean clear)

Updates the nodes in the tree based on the given set of rows. Clears the existing display if clear flag is true.

Overrides:

updateValuesFromRows in class JUCtrlRangeBinding

getRootBinding

public JUTreeNodeBinding getRootBinding()

Returns the root node binding that contains the iterator that the root node is displaying

treeCollapsed

public void treeCollapsed(javax.swing.event.TreeExpansionEvent e)

Specified by:

treeCollapsed in interface javax.swing.event.TreeExpansionListener

treeExpanded

public void treeExpanded(javax.swing.event.TreeExpansionEvent e)

Specified by:

treeExpanded in interface javax.swing.event.TreeExpansionListener

valueChanged

public void valueChanged(javax.swing.event.TreeSelectionEvent e)

Specified by:

valueChanged in interface javax.swing.event.TreeSelectionListener

getRoot

public java.lang.Object getRoot()

Specified by:

getRoot in interface javax.swing.tree.TreeModel

getChild

public java.lang.Object getChild(java.lang.Object parent,
                                 int index)

Specified by:

getChild in interface javax.swing.tree.TreeModel

getChildCount

public int getChildCount(java.lang.Object parent)

Specified by:

getChildCount in interface javax.swing.tree.TreeModel

isLeaf

public boolean isLeaf(java.lang.Object node)

Specified by:

isLeaf in interface javax.swing.tree.TreeModel

valueForPathChanged

public void valueForPathChanged(javax.swing.tree.TreePath path,
                                java.lang.Object newValue)

Specified by:

valueForPathChanged in interface javax.swing.tree.TreeModel

getIndexOfChild

public int getIndexOfChild(java.lang.Object parent,
                           java.lang.Object child)

Specified by:

getIndexOfChild in interface javax.swing.tree.TreeModel

addTreeModelListener

public void addTreeModelListener(javax.swing.event.TreeModelListener l)

Specified by:

addTreeModelListener in interface javax.swing.tree.TreeModel

removeTreeModelListener

public void removeTreeModelListener(javax.swing.event.TreeModelListener l)

Specified by:

removeTreeModelListener in interface javax.swing.tree.TreeModel