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

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

All Implemented Interfaces:

FunctionChangeListener, InstanceItemListener

Direct Known Subclasses:

DynamicDependencyHandler.ValueDependency

Enclosing class:

DynamicDependencyHandler

public class DynamicDependencyHandler.Dependency

extends java.lang.Object

implements InstanceItemListener, FunctionChangeListener

Nested Class Summary

class	DynamicDependencyHandler.Dependency.RealNodeList
class	DynamicDependencyHandler.Dependency.ValueChangeListener this class listens for the change in the referred nodeset

Field Summary

protected static int	afterValueChangeState
protected short	binding_state the current binding state, one of the above
int	bindingType
protected static int	defaultDirtyState
protected int	dirtyState
protected boolean	hasFunctionReferences
protected DynamicDependencyListener	listener
static int	NODESET_BINDING
static int	READONLY_DIRTY
static int	RELEVANT_DIRTY
static int	REQUIRED_DIRTY
static int	SINGLENODE_BINDING
static int	VALID_DIRTY
static int	VALUE_BINDING
static int	VALUE_DIRTY
protected DynamicDependencyHandler.Dependency.ValueChangeListener	valueChangeListener
protected LookupResult	xpathresult

Constructor Summary

DynamicDependencyHandler.Dependency(int aBindingType)

Method Summary

void	checkStyling()
void	checkValidity(InstanceItem item) An instance item instructs the control to check its status, when the status changes
void	checkVisibility(InstanceItem item) An instance item instructs the control to check its status, when the status changes
void	clearAllDirtyFlags()
protected org.w3c.dom.NodeList	convertToTrueNodeList(org.w3c.dom.NodeList nodes)
void	destroy()
protected void	dumpList(org.w3c.dom.NodeList list) dump list contents
protected org.w3c.dom.NodeList	executeAndGetBoundNodeset(DynamicDependencyListener l)
protected void	executeAndGetReferredNodes(DynamicDependencyListener l, LookupResult result)
void	functionValueChanged(java.lang.String function)
short	getBindingState()
int	getBindingType()
org.w3c.dom.NodeList	getBoundNodes()
DynamicDependencyListener	getDependencyListener()
org.w3c.dom.Node	getRefNode()
boolean	hasDirtyFlags()
protected boolean	hasNode(org.w3c.dom.Node n, org.w3c.dom.NodeList list) see, if a node is contained in a nodelist
void	init(DynamicDependencyListener depListener)
protected boolean	isDifferentSet(org.w3c.dom.NodeList nl1, org.w3c.dom.NodeList nl2) compares two sets
void	notifyError(java.lang.Exception e, boolean atSubmission) notify this listener that there was an error in the value of the instance item.
void	reevaluateBinding() execute the XPath and see if the bound nodeset has changed.
protected void	removeBoundListeners()
protected void	removeNodeListFromVector(org.w3c.dom.NodeList list, java.util.Vector vect)
protected void	removeRefListeners()
void	setDirtyState(int stateids, boolean val, boolean addToDirtyList)
void	setReadonly(boolean readonly)
void	setRequired(boolean required)
boolean	testAndClearDirtyState(int stateid)
boolean	testDirtyState(int stateids)
void	valueChanged(java.lang.String newValue) The value of this instanceItem has changed

Methods inherited from class java.lang.Object

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

Field Detail

xpathresult

protected LookupResult xpathresult

SINGLENODE_BINDING

public static final int SINGLENODE_BINDING

See Also:

Constant Field Values

NODESET_BINDING

public static final int NODESET_BINDING

See Also:

Constant Field Values

VALUE_BINDING

public static final int VALUE_BINDING

See Also:

Constant Field Values

bindingType

public int bindingType

hasFunctionReferences

protected boolean hasFunctionReferences

listener

protected DynamicDependencyListener listener

valueChangeListener

protected DynamicDependencyHandler.Dependency.ValueChangeListener valueChangeListener

binding_state

protected short binding_state

the current binding state, one of the above

VALID_DIRTY

public static final int VALID_DIRTY

See Also:

Constant Field Values

REQUIRED_DIRTY

public static final int REQUIRED_DIRTY

See Also:

Constant Field Values

READONLY_DIRTY

public static final int READONLY_DIRTY

See Also:

Constant Field Values

RELEVANT_DIRTY

public static final int RELEVANT_DIRTY

See Also:

Constant Field Values

VALUE_DIRTY

public static final int VALUE_DIRTY

See Also:

Constant Field Values

defaultDirtyState

protected static final int defaultDirtyState

See Also:

Constant Field Values

afterValueChangeState

protected static final int afterValueChangeState

See Also:

Constant Field Values

dirtyState

protected int dirtyState

Constructor Detail

DynamicDependencyHandler.Dependency

public DynamicDependencyHandler.Dependency(int aBindingType)

Method Detail

init

public void init(DynamicDependencyListener depListener)
          throws java.lang.Exception

Throws:

java.lang.Exception

getDependencyListener

public DynamicDependencyListener getDependencyListener()

getBindingState

public short getBindingState()

Returns:

the current binding state

testDirtyState

public boolean testDirtyState(int stateids)

setDirtyState

public void setDirtyState(int stateids,
                          boolean val,
                          boolean addToDirtyList)

hasDirtyFlags

public boolean hasDirtyFlags()

testAndClearDirtyState

public boolean testAndClearDirtyState(int stateid)

executeAndGetReferredNodes

protected void executeAndGetReferredNodes(DynamicDependencyListener l,
                                          LookupResult result)
                                   throws java.lang.Exception

Returns:

all the nodes that the xpath expression refers to. Note! this will also return the nodes that are result of the expression

Throws:

java.lang.Exception

executeAndGetBoundNodeset

protected org.w3c.dom.NodeList executeAndGetBoundNodeset(DynamicDependencyListener l)
                                                  throws java.lang.Exception

Throws:

java.lang.Exception

removeNodeListFromVector

protected void removeNodeListFromVector(org.w3c.dom.NodeList list,
                                        java.util.Vector vect)

dumpList

protected void dumpList(org.w3c.dom.NodeList list)

dump list contents

isDifferentSet

protected boolean isDifferentSet(org.w3c.dom.NodeList nl1,
                                 org.w3c.dom.NodeList nl2)

compares two sets

hasNode

protected boolean hasNode(org.w3c.dom.Node n,
                          org.w3c.dom.NodeList list)

see, if a node is contained in a nodelist

getBoundNodes

public org.w3c.dom.NodeList getBoundNodes()

getRefNode

public org.w3c.dom.Node getRefNode()

convertToTrueNodeList

protected org.w3c.dom.NodeList convertToTrueNodeList(org.w3c.dom.NodeList nodes)

reevaluateBinding

public void reevaluateBinding()
                       throws java.lang.Exception

execute the XPath and see if the bound nodeset has changed. if changed, then update internal listeners and notify the listener

Throws:

java.lang.Exception

removeBoundListeners

protected void removeBoundListeners()

removeRefListeners

protected void removeRefListeners()

destroy

public void destroy()

checkValidity

public void checkValidity(InstanceItem item)

An instance item instructs the control to check its status, when the status changes

Specified by:

checkValidity in interface InstanceItemListener

checkVisibility

public void checkVisibility(InstanceItem item)

An instance item instructs the control to check its status, when the status changes

Specified by:

checkVisibility in interface InstanceItemListener

notifyError

public void notifyError(java.lang.Exception e,
                        boolean atSubmission)

notify this listener that there was an error in the value of the instance item. This can be schema validity, constraint, required etc.

Specified by:

notifyError in interface InstanceItemListener

setReadonly

public void setReadonly(boolean readonly)

Specified by:

setReadonly in interface InstanceItemListener

setRequired

public void setRequired(boolean required)

Specified by:

setRequired in interface InstanceItemListener

valueChanged

public void valueChanged(java.lang.String newValue)

The value of this instanceItem has changed

Specified by:

valueChanged in interface InstanceItemListener

getBindingType

public int getBindingType()

functionValueChanged

public void functionValueChanged(java.lang.String function)

Specified by:

functionValueChanged in interface FunctionChangeListener

checkStyling

public void checkStyling()

Specified by:

checkStyling in interface InstanceItemListener

clearAllDirtyFlags

public void clearAllDirtyFlags()