facets.core.superficial
Class SNumeric

java.lang.Object
  facets.util.Tracer
      facets.core.superficial.TargetCore
          facets.core.superficial.SNumeric

All Implemented Interfaces:

Notifiable, Notifying, STarget, TargeterCore.TargetType, Identified, Titled

public final class SNumeric
extends TargetCore

STarget representing a numeric value.

SNumeric represents a numeric value to be exposed to user view and control in the surface; application-specific mechanism and policy can be defined in a SNumeric.Coupler.

Nested Class Summary

static class

SNumeric.Coupler Connects a SNumeric to the application.

Nested classes/interfaces inherited from interface facets.core.superficial.STarget

STarget.Targeted

Nested classes/interfaces inherited from interface facets.core.superficial.Notifying

Notifying.Impact

Field Summary

static boolean

doRangeChecks

Fields inherited from class facets.core.superficial.TargetCore

targets

Fields inherited from interface facets.core.superficial.STarget

NONE

Constructor Summary

SNumeric(java.lang.String title, double value, SNumeric.Coupler coupler)
Unique constructor.

Method Summary

protected boolean	blockNotification() Enables notification to be restricted to this member of the tree.
java.lang.Object	identity() Return an object that is as far as possible unique for the implementation.
Notifying.Impact	impact() Allows this Notifying to specify a default Notifying.Impact.
Notifiable	monitor() The current Notifiable in the notification tree, as set with setMonitor.
protected TypedNode[]	newDebugChildren() Create a TypedNode[] representation of this Notifying for debug purposes.
protected static TypedNode	newDebugContentNode(java.lang.String title, java.lang.Object source)
protected static TypedNode	newDebugContentNode(java.lang.String title, java.lang.Object[] source)
protected static TypedNode	newDebugMonitorNode(Notifiable monitor)
TypedNode	newGraphNode() Returns a descriptive node for use in debug object graph.
void	notify(Notice notice) Respond to the Notice passed.
void	notifyMonitor(Notifying.Impact impact) Call notify on the parent monitor in the notification tree, typically with itself as parameter to the Notice passed.
NumberPolicy	policy() Returns the current number policy.
void	setMonitor(Notifiable monitor) Attach the Notifying to a Notifiable parent in the notification tree.
void	setValue(double value) Sets the nearest valid value to value.
java.lang.String	toString()
protected void	traceOutput(java.lang.String msg) Outputs complete trace messages to console or elsewhere.
double	value() Returns the last valid value set.

Methods inherited from class facets.core.superficial.TargetCore

elements, findMonitorOfType, isLive, join, lazyElements, newTargeter, notifiesTargeter, setElements, setLive, title, wantsFocus

Methods inherited from class facets.util.Tracer

trace, trace, trace, trace, trace, traceDebug, traceDebug, traceObjectText, traceOutputWithClass

Methods inherited from class java.lang.Object

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

Methods inherited from interface facets.core.superficial.Notifying

impact, monitor, notifyMonitor, setMonitor

Methods inherited from interface facets.core.superficial.Notifiable

notify

Field Detail

doRangeChecks

public static boolean doRangeChecks

Constructor Detail

SNumeric

public SNumeric(java.lang.String title,
                double value,
                SNumeric.Coupler coupler)

Unique constructor.

Parameters:

title - passed to superclass

value - the initial value

coupler - must supply application-specific mechanism and policy

Method Detail

value

public double value()

Returns the last valid value set.

The value returned will that set using setValue or during construction; if doRangeChecks is set to true it will be checked against the number policy minimum and maximum values.

setValue

public void setValue(double value)

Sets the nearest valid value to value.

Validity will be as defined by validValue in the NumberPolicy returned as policy. Subsequently calls valueSet in the SNumeric.Coupler with which the SNumeric was constructed.

policy

public NumberPolicy policy()

Returns the current number policy.

The policy is that returned by the SNumeric.Coupler with which the SNumeric was constructed.

toString

public java.lang.String toString()

Overrides:

toString in class TargetCore

newDebugChildren

protected TypedNode[] newDebugChildren()

Create a TypedNode[] representation of this Notifying for debug purposes.

Overrides:

newDebugChildren in class TargetCore

traceOutput

protected void traceOutput(java.lang.String msg)

Description copied from class: Tracer

Outputs complete trace messages to console or elsewhere.

Default prepends helpful classname to message.

Overrides:

traceOutput in class Tracer

Parameters:

msg - passed from one of the public methods

newDebugContentNode

protected static final TypedNode newDebugContentNode(java.lang.String title,
                                                     java.lang.Object source)

newDebugContentNode

protected static final TypedNode newDebugContentNode(java.lang.String title,
                                                     java.lang.Object[] source)

newDebugMonitorNode

protected static final TypedNode newDebugMonitorNode(Notifiable monitor)

newGraphNode

public final TypedNode newGraphNode()

Returns a descriptive node for use in debug object graph.

impact

public Notifying.Impact impact()

Description copied from interface: Notifying

Allows this Notifying to specify a default Notifying.Impact.

Specified by:

impact in interface Notifying

Returns:

typically Notifying.Impact.DEFAULT

identity

public java.lang.Object identity()

Description copied from interface: Identified

Return an object that is as far as possible unique for the implementation.

This will usually be a class instance counter.

Specified by:

identity in interface Identified

monitor

public final Notifiable monitor()

The current Notifiable in the notification tree, as set with setMonitor.

Complains if no parent has been set.

Specified by:

monitor in interface Notifying

notify

public void notify(Notice notice)

Description copied from interface: Notifiable

Respond to the Notice passed.

When this method is called, the Notifiable should respond based on

• its own nature and state
• the Notice passed.

Specified by:

notify in interface Notifiable

notifyMonitor

public final void notifyMonitor(Notifying.Impact impact)

Description copied from interface: Notifying

Call notify on the parent monitor in the notification tree, typically with itself as parameter to the Notice passed.

Has no effect if no monitor has been set.

This is the usual means to trigger a surface retargeting, being called by an exposing SFacet on its target.

Specified by:

notifyMonitor in interface Notifying

Parameters:

impact - suggests the level of retargeting required

blockNotification

protected boolean blockNotification()

Enables notification to be restricted to this member of the tree.

Checked by notify(Notice); default returns false.

setMonitor

public final void setMonitor(Notifiable monitor)

Description copied from interface: Notifying

Attach the Notifying to a Notifiable parent in the notification tree.

Specified by:

setMonitor in interface Notifying