Package sc.bind

Class ConstantBinding

java.lang.Object

sc.bind.ConstantBinding

All Implemented Interfaces:

IBinding

public class ConstantBinding
extends java.lang.Object
implements IBinding

Constructor Summary

Constructors

Constructor	Description
ConstantBinding(java.lang.Object val)

Method Summary

Modifier and Type	Method	Description
void	activate(boolean state, java.lang.Object obj, boolean chained)	Called to deactive/re-activate a child binding for a condition or ternary expression
void	addBindingListener(java.lang.Object eventObject, IListener listener, int event)
boolean	applyBinding(java.lang.Object obj, java.lang.Object value, IBinding src, boolean refresh, boolean pendingChild)
void	applyReverseBinding(java.lang.Object obj, java.lang.Object value, java.lang.Object src)	This might happen if you have: foo =: (x ? null : null) - i.e.
java.lang.Object	getConstantValue()
java.lang.Object	getPropertyValue(java.lang.Object parent, boolean getField, boolean pendingChild)	Retrieves the current value of the binding given the current object.
java.lang.Object	initializeBinding()
void	invalidateBinding(java.lang.Object object, boolean sendEvent, int event, boolean includeParams)
boolean	isConstant()
boolean	isReversible()
void	parentBindingChanged()	Called from the VariableBinding when the parent's value has changed.
java.lang.Object	performCast(java.lang.Object val)
void	removeBindingListener(java.lang.Object eventObject, IListener listener, int event)
void	removeListener()
void	setBindingParent(IBinding parent, BindingDirection dir)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstantBinding

public ConstantBinding(java.lang.Object val)

Method Detail

getPropertyValue

public java.lang.Object getPropertyValue(java.lang.Object parent,
                                         boolean getField,
                                         boolean pendingChild)

Description copied from interface: IBinding

Retrieves the current value of the binding given the current object. Use getField = true to force use of the field, rather than the getX method if one exists. Use pendingChild = true for a special case where we are getting the property value of a binding that is part of a reverse binding but where the cached value is up-to-update because we are updating a child remote property.

Specified by:

getPropertyValue in interface IBinding

addBindingListener

public void addBindingListener(java.lang.Object eventObject,
                               IListener listener,
                               int event)

Specified by:

addBindingListener in interface IBinding

removeBindingListener

public void removeBindingListener(java.lang.Object eventObject,
                                  IListener listener,
                                  int event)

Specified by:

removeBindingListener in interface IBinding

invalidateBinding

public void invalidateBinding(java.lang.Object object,
                              boolean sendEvent,
                              int event,
                              boolean includeParams)

Specified by:

invalidateBinding in interface IBinding

applyBinding

public boolean applyBinding(java.lang.Object obj,
                            java.lang.Object value,
                            IBinding src,
                            boolean refresh,
                            boolean pendingChild)

Specified by:

applyBinding in interface IBinding

applyReverseBinding

public void applyReverseBinding(java.lang.Object obj,
                                java.lang.Object value,
                                java.lang.Object src)

This might happen if you have: foo =: (x ? null : null) - i.e. it implies evaluating the constant as an expression when the reverse event fires

Specified by:

applyReverseBinding in interface IBinding

removeListener

public void removeListener()

Specified by:

removeListener in interface IBinding

initializeBinding

public java.lang.Object initializeBinding()

Specified by:

initializeBinding in interface IBinding

setBindingParent

public void setBindingParent(IBinding parent,
                             BindingDirection dir)

Specified by:

setBindingParent in interface IBinding

isConstant

public boolean isConstant()

Specified by:

isConstant in interface IBinding

parentBindingChanged

public void parentBindingChanged()

Description copied from interface: IBinding

Called from the VariableBinding when the parent's value has changed. E.g. for "a.b", b.parentBindingChanged() is called when we detect changes on 'a'.

Specified by:

parentBindingChanged in interface IBinding

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

performCast

public java.lang.Object performCast(java.lang.Object val)

Specified by:

performCast in interface IBinding

activate

public void activate(boolean state,
                     java.lang.Object obj,
                     boolean chained)

Description copied from interface: IBinding

Called to deactive/re-activate a child binding for a condition or ternary expression

Specified by:

activate in interface IBinding

isReversible

public boolean isReversible()

Specified by:

isReversible in interface IBinding

getConstantValue

public java.lang.Object getConstantValue()