Package jmri.jmrit.logixng.expressions

Class Hold

java.lang.Object

jmri.implementation.AbstractNamedBean

jmri.jmrit.logixng.implementation.AbstractBase

jmri.jmrit.logixng.expressions.AbstractDigitalExpression

jmri.jmrit.logixng.expressions.Hold

All Implemented Interfaces:

java.lang.Comparable<NamedBean>, PropertyChangeProvider, Base, DigitalExpression, DigitalExpressionBean, FemaleSocketListener, NamedBean

public class Hold
extends AbstractDigitalExpression
implements FemaleSocketListener

An Expression that keeps its status even if its child expression doesn't. This expression stays False until both the 'hold' expression and the 'trigger' expression becomes True. It stays true until the 'hold' expression goes to False. The 'trigger' expression can for example be a push button that stays True for a short time.

Nested Class Summary

Nested classes/interfaces inherited from interface jmri.jmrit.logixng.Base

Base.PrintTreeSettings, Base.RunnableWithBase, Base.RunnableWithBaseThrowException

Nested classes/interfaces inherited from interface jmri.NamedBean

NamedBean.BadNameException, NamedBean.BadSystemNameException, NamedBean.BadUserNameException, NamedBean.DisplayOptions, NamedBean.DuplicateSystemNameException

Field Summary

Fields inherited from class jmri.jmrit.logixng.implementation.AbstractBase

_listenersAreRegistered

Fields inherited from class jmri.implementation.AbstractNamedBean

listenerRefs, mSystemName, register

Fields inherited from interface jmri.jmrit.logixng.Base

PRINT_LINE_NUMBERS_FORMAT, PROPERTY_CHILD_COUNT, PROPERTY_CHILD_REORDER, PROPERTY_LAST_RESULT_CHANGED, PROPERTY_SOCKET_CONNECTED, PROPERTY_SOCKET_DISCONNECTED, SEPARATOR, SOCKET_CONNECTED, SOCKET_DISCONNECTED

Fields inherited from interface jmri.jmrit.logixng.DigitalExpressionBean

FALSE, TRUE

Fields inherited from interface jmri.NamedBean

DISPLAY_NAME_FORMAT, INCONSISTENT, PROPERTY_STATE, QUOTED_NAME_FORMAT, UNKNOWN

Constructor Summary

Constructors

Constructor	Description
Hold(java.lang.String sys, java.lang.String user)

Method Summary

Modifier and Type	Method	Description
void	connected(FemaleSocket socket)	The socket is connected.
void	disconnected(FemaleSocket socket)	The socket is disconnected.
void	disposeMe()	Dispose this class.
boolean	evaluate()	Evaluate this expression.
Category	getCategory()	Get the category.
FemaleSocket	getChild(int index)	Get a child of this item
int	getChildCount()	Get the number of children.
Base	getDeepCopy(java.util.Map<java.lang.String,java.lang.String> systemNames, java.util.Map<java.lang.String,java.lang.String> userNames)	Create a deep copy of myself and my children The item needs to try to lookup itself in both systemNames and userNames to see if the user has given a new system name and/or a new user name.If no new system name is given, an auto system name is used.
java.lang.String	getHoldActionSocketSystemName()
java.lang.String	getLongDescription(java.util.Locale locale)	Get a long description of this item.
java.lang.String	getShortDescription(java.util.Locale locale)	Get a short description of this item.
java.lang.String	getTriggerExpressionSocketSystemName()
void	registerListenersForThisClass()	Register listeners if this object needs that.
void	setHoldActionSocketSystemName(java.lang.String systemName)
void	setTriggerExpressionSocketSystemName(java.lang.String systemName)
void	setup()	Setup this object and its children.
void	unregisterListenersForThisClass()	Unregister listeners if this object needs that.

Methods inherited from class jmri.jmrit.logixng.expressions.AbstractDigitalExpression

getBeanType, getNewSocketName, getNewSocketName, getParent, getState, notifyChangedResult, setParent, setState

Methods inherited from class jmri.jmrit.logixng.implementation.AbstractBase

assertListenersAreNotRegistered, compareSystemNameSuffix, deepCopyChildren, dispose, getConditionalNG, getListenerRefsIncludingChildren, getLogixNG, getRoot, getUsageDetail, getUsageTree, isActive, printTree, printTree, printTree, printTreeRow, registerListeners, setParentForAllChildren, unregisterListeners

Methods inherited from class jmri.implementation.AbstractNamedBean

addPropertyChangeListener, addPropertyChangeListener, addPropertyChangeListener, addPropertyChangeListener, describeState, equals, firePropertyChange, getComment, getDisplayName, getDisplayName, getListenerRef, getListenerRefs, getNumPropertyChangeListeners, getProperty, getPropertyChangeListeners, getPropertyChangeListeners, getPropertyChangeListenersByReference, getPropertyKeys, getSystemName, getUserName, hashCode, removeProperty, removePropertyChangeListener, removePropertyChangeListener, setComment, setProperty, setUserName, toString, toStringSuffix, updateListenerRef, vetoableChange

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface jmri.jmrit.logixng.Base

addPropertyChangeListener, addPropertyChangeListener, deepCopyChildren, dispose, doSocketOperation, existsInTree, forEntireTree, forEntireTreeWithException, getComment, getConditionalNG, getListenerRef, getListenerRefs, getListenerRefsIncludingChildren, getLogixNG, getLongDescription, getModule, getNumPropertyChangeListeners, getPropertyChangeListenersByReference, getRoot, getShortDescription, getSystemName, getUsageDetail, getUsageTree, getUserName, hasChild, isActive, isEnabled, isSocketOperationAllowed, printTree, printTree, printTree, printTree, printTree, registerListeners, setComment, setParentForAllChildren, setUserName, unregisterListeners, updateListenerRef, vetoableChange

Methods inherited from interface jmri.jmrit.logixng.FemaleSocketListener

socketNameChanged

Methods inherited from interface jmri.NamedBean

addPropertyChangeListener, addPropertyChangeListener, compareSystemNameSuffix, compareTo, describeState, dispose, getComment, getDisplayName, getDisplayName, getListenerRef, getListenerRefs, getNumPropertyChangeListeners, getProperty, getPropertyChangeListenersByReference, getPropertyKeys, getRecommendedToolTip, getSystemName, getUsageReport, getUserName, removeProperty, setComment, setProperty, setUserName, toString, updateListenerRef, vetoableChange

Methods inherited from interface jmri.beans.PropertyChangeProvider

addPropertyChangeListener, addPropertyChangeListener, getPropertyChangeListeners, getPropertyChangeListeners, removePropertyChangeListener, removePropertyChangeListener

Constructor Detail

Hold

public Hold(java.lang.String sys,
            java.lang.String user)
     throws NamedBean.BadUserNameException,
            NamedBean.BadSystemNameException

Throws:

NamedBean.BadUserNameException

NamedBean.BadSystemNameException

Method Detail

getDeepCopy

public Base getDeepCopy(java.util.Map<java.lang.String,java.lang.String> systemNames,
                        java.util.Map<java.lang.String,java.lang.String> userNames)
                 throws JmriException

Description copied from interface: Base

Create a deep copy of myself and my children The item needs to try to lookup itself in both systemNames and userNames to see if the user has given a new system name and/or a new user name.If no new system name is given, an auto system name is used. If no user name is given, a null user name is used.

Specified by:

getDeepCopy in interface Base

Parameters:

systemNames - a map of old and new system name

userNames - a map of old system name and new user name

Returns:

a deep copy

Throws:

JmriException - in case of an error

getCategory

public Category getCategory()

Get the category.

Specified by:

getCategory in interface Base

Overrides:

getCategory in class AbstractBase

Returns:

the category

evaluate

public boolean evaluate()
                 throws JmriException

Evaluate this expression.

Specified by:

evaluate in interface DigitalExpression

Returns:

the result of the evaluation

Throws:

JmriException - when an exception occurs

getChild

public FemaleSocket getChild(int index)
                      throws java.lang.IllegalArgumentException,
                             java.lang.UnsupportedOperationException

Description copied from class: AbstractBase

Get a child of this item

Specified by:

getChild in interface Base

Overrides:

getChild in class AbstractBase

Parameters:

index - the index of the child to get

Returns:

the child

Throws:

java.lang.IllegalArgumentException - if the index is less than 0 or greater or equal with the value returned by getChildCount()

java.lang.UnsupportedOperationException

getChildCount

public int getChildCount()

Description copied from class: AbstractBase

Get the number of children.

Specified by:

getChildCount in interface Base

Overrides:

getChildCount in class AbstractBase

Returns:

the number of children

connected

public void connected(FemaleSocket socket)

Description copied from interface: FemaleSocketListener

The socket is connected.

Specified by:

connected in interface FemaleSocketListener

Parameters:

socket - the socket

disconnected

public void disconnected(FemaleSocket socket)

Description copied from interface: FemaleSocketListener

The socket is disconnected.

Specified by:

disconnected in interface FemaleSocketListener

Parameters:

socket - the socket

getShortDescription

public java.lang.String getShortDescription(java.util.Locale locale)

Description copied from interface: Base

Get a short description of this item.

Specified by:

getShortDescription in interface Base

Parameters:

locale - The locale to be used

Returns:

a short description

getLongDescription

public java.lang.String getLongDescription(java.util.Locale locale)

Description copied from interface: Base

Get a long description of this item.

Specified by:

getLongDescription in interface Base

Parameters:

locale - The locale to be used

Returns:

a long description

getTriggerExpressionSocketSystemName

public java.lang.String getTriggerExpressionSocketSystemName()

setTriggerExpressionSocketSystemName

public void setTriggerExpressionSocketSystemName(java.lang.String systemName)

getHoldActionSocketSystemName

public java.lang.String getHoldActionSocketSystemName()

setHoldActionSocketSystemName

public void setHoldActionSocketSystemName(java.lang.String systemName)

setup

public void setup()

Setup this object and its children. This method is used to lookup system names for child sockets, turnouts, sensors, and so on.

Specified by:

setup in interface Base

registerListenersForThisClass

public void registerListenersForThisClass()

Register listeners if this object needs that.

Important: This method may be called more than once. Methods overriding this method must ensure that listeners are not registered more than once.

Overrides:

registerListenersForThisClass in class AbstractBase

unregisterListenersForThisClass

public void unregisterListenersForThisClass()

Unregister listeners if this object needs that.

Important: This method may be called more than once. Methods overriding this method must ensure that listeners are not unregistered more than once.

Overrides:

unregisterListenersForThisClass in class AbstractBase

disposeMe

public void disposeMe()

Dispose this class. Listeners do not need to be unregistered by this method since they are unregistered by dispose().

Overrides:

disposeMe in class AbstractBase