fi.hut.tml.xsmiles.mlfc.xforms.constraint
Class DynamicDependencyHandler

java.lang.Object
  fi.hut.tml.xsmiles.mlfc.xforms.constraint.DynamicDependencyHandler

public class DynamicDependencyHandler

extends java.lang.Object

The handler for dynamic UI dependencies This handler will notify if the bound nodeset changes as well as the bound node value changes. in expression /root[name='mikko']/length, the bound node will be length, and all the name nodes will be referred nodes.

Author:

Mikko Honkala

Nested Class Summary

class	DynamicDependencyHandler.Dependency
class	DynamicDependencyHandler.ValueDependency

Field Summary

protected XFormsContext	context
protected java.util.Hashtable	dependencies current dependencies
protected java.util.Vector	dirtyDependencies
static int	DIRTYINITIALSIZE
protected java.util.Vector	dirtyMIPS
protected ModelElementImpl	model

Constructor Summary

DynamicDependencyHandler(XFormsContext aContext, ModelElementImpl aModel)

Method Summary

void	addDependency(DynamicDependencyHandler.Dependency dep)
void	addDirtyDependency(DynamicDependencyHandler.Dependency dep)
void	addDirtyMIP(DynamicDependencyHandler.Dependency dep)
DynamicDependencyHandler.Dependency	createDependency(int aBindingType)
void	destroy()
java.util.Vector	getAndClearDirtyDependencies()
java.util.Vector	getAndClearDirtyMIPS()
void	markAllUIDependenciesDirty()
void	reevaluateDependencies() this is a rather costly operation that executes all XPath statements to see whether they have changed.
void	removeDependency(DynamicDependencyHandler.Dependency dep)

Methods inherited from class java.lang.Object

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

Field Detail

dependencies

protected java.util.Hashtable dependencies

current dependencies

context

protected XFormsContext context

model

protected ModelElementImpl model

DIRTYINITIALSIZE

public static final int DIRTYINITIALSIZE

See Also:

Constant Field Values

dirtyMIPS

protected java.util.Vector dirtyMIPS

dirtyDependencies

protected java.util.Vector dirtyDependencies

Constructor Detail

DynamicDependencyHandler

public DynamicDependencyHandler(XFormsContext aContext,
                                ModelElementImpl aModel)

Method Detail

addDependency

public void addDependency(DynamicDependencyHandler.Dependency dep)

removeDependency

public void removeDependency(DynamicDependencyHandler.Dependency dep)

addDirtyDependency

public void addDirtyDependency(DynamicDependencyHandler.Dependency dep)

addDirtyMIP

public void addDirtyMIP(DynamicDependencyHandler.Dependency dep)

getAndClearDirtyMIPS

public java.util.Vector getAndClearDirtyMIPS()

getAndClearDirtyDependencies

public java.util.Vector getAndClearDirtyDependencies()

createDependency

public DynamicDependencyHandler.Dependency createDependency(int aBindingType)
                                                     throws java.lang.Exception

Throws:

java.lang.Exception

reevaluateDependencies

public void reevaluateDependencies()
                            throws java.lang.Exception

this is a rather costly operation that executes all XPath statements to see whether they have changed. Call this after insertion or deletion of a node

Throws:

java.lang.Exception

destroy

public void destroy()

markAllUIDependenciesDirty

public void markAllUIDependenciesDirty()