public class Connections extends DefaultFolder implements Copyable, SubDirtyable, Subject
| Modifier and Type | Field and Description |
|---|---|
static java.lang.String |
CONNECTIONS |
_children| Constructor and Description |
|---|
Connections()
Default constructor.
|
Connections(Connections otherConnections)
Copy constructor.
|
| Modifier and Type | Method and Description |
|---|---|
void |
attach(Observer observer)
Registers an observer interested in being notified when the internal
state of the class implementing the
Subject interface
changes. |
java.lang.Object |
copyTo(java.lang.Object object)
Copies the internal state of
this object to the
specified copy. |
void |
detach(Observer observer)
Unregisters an observer that is not interested anymore in being notified
when the internal state of the class implementing the
Subject
interface changes. |
javax.swing.Icon |
getIcon()
Part of
Element interface. |
java.lang.String |
getLongLabel()
This implementation delegates to
DefaultDisplayable.getShortLabel(). |
java.lang.String |
getShortLabel()
This implementation returns a place-holder
String. |
java.lang.String |
getToolTipText()
This implementation delegates to
DefaultDisplayable.getLongLabel(). |
boolean |
isDirty()
True if the data in the object has been modified.
|
void |
markDirty(boolean dirty)
Marks the data with the specified dirty state.
|
void |
notifyObservers(java.lang.Object subject,
UpdateMessage change)
Notifies all observers that the state of the subject has changed.
|
void |
setOwner(Dirtyable owner)
This method should be called to set the document in which a
SubDirtyable implementation will be persisted. |
add, canAdd, canRemove, containsChild, copyToImpl, equalsImpl, getChildren, mayHaveChildren, remove, removeAll, sizegetAttributes, getDatatoStringclone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitgetAttributes, getDatatoStringpublic static final java.lang.String CONNECTIONS
public Connections()
public Connections(Connections otherConnections)
public java.lang.Object copyTo(java.lang.Object object)
Copyablethis object to the
specified copy. If copy is
null, then this method should create a new instance
of this class and proceed to copy the internal state
to the newly created object. Generally, only the persistent
state of the object should be copied, but whether or not it is
appropriate to copy transient properties is at the discretion
of the individual implementor.
Regardless of whether the copy occurs to an existing object or to
a newly created object, the return value is object to which
this object's state was copied.
There is a standard implementation pattern for the
copyTo method that helps avoid problems that arise
when a Copyable object is subclassed. The pattern
is:
public Object copyTo( Object target )
{
final <this_class> copy =
target != null ? (<this_class>) target : new <this_class>();
copyToImpl( copy );
return copy;
}
protected final void copyToImpl( <this_class> copy )
{
super.copyToImpl( copy ); // if necessary
// put code here for copying the properties of <this_class>
}
copyToImpl method is
the same type of this class. The responsibility of
copyToImpl is to copy the state of this
class through direct access of the fields. The
copyToImpl method should not use getters and setters
since these may be overridden, causing the state of
this class to be incompletely copied.copyTo in interface Copyableobject - The target object to which the state of
this object should be copied. If target
is null, then the copyTo method will
return a new instance of this class.this
object was copied. If the target was
non-null, then the return value is the same as the
target object that was passed in; otherwise, the
return value is a new instance of this class.public boolean isDirty()
Dirtyablepublic void markDirty(boolean dirty)
DirtyablemarkDirty(...) instead of
setDirty(...) so that the JavaBeans
Introspector will not
mistakenly identify "dirty" as a JavaBean property.public void setOwner(Dirtyable owner)
SubDirtyableSubDirtyable implementation will be persisted.setOwner in interface SubDirtyableowner - The Dirtyable object in which this
SubDirtyable will be saved.public java.lang.String getShortLabel()
DefaultDisplayableString.getShortLabel in interface DisplayablegetShortLabel in class DefaultDisplayableDisplayable
that can be shown to the user.Displayable.getShortLabel()public java.lang.String getLongLabel()
DefaultDisplayableDefaultDisplayable.getShortLabel().getLongLabel in interface DisplayablegetLongLabel in class DefaultDisplayableDisplayable that
can be shown to the user.Displayable.getLongLabel()public javax.swing.Icon getIcon()
DefaultFolderElement interface. The default implementation
returns null, which causes a default folder icon to be
used.getIcon in interface DisplayablegetIcon in class DefaultFolderIcon to be displayed for the
Displayable.Displayable.getIcon()public java.lang.String getToolTipText()
DefaultDisplayableDefaultDisplayable.getLongLabel().getToolTipText in interface DisplayablegetToolTipText in class DefaultDisplayableDisplayable.Displayable.getToolTipText()public void attach(Observer observer)
SubjectSubject interface
changes.
Implementors should do nothing when the same observer is added more
than once.public void detach(Observer observer)
SubjectSubject
interface changes.
Implementors should do nothing when the same observer is removed more
than once.public void notifyObservers(java.lang.Object subject,
UpdateMessage change)
SubjectnotifyObservers in interface Subjectsubject - the subject whose state has changed.change - what changed.