public abstract class Model extends java.lang.Object implements Printable
Modifier and Type | Field and Description |
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private java.util.List<ModelChangeListener> |
listeners
Model listeners
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Constructor and Description |
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Model()
Default constructor.
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Modifier and Type | Method and Description |
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void |
addListener(ModelChangeListener listener)
Add listener for scrolling changes.
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void |
changed()
Notify model listeners.
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private java.util.List<ModelChangeListener> |
getListenersForUpdate() |
void |
removeListener(ModelChangeListener listener)
Remove the object from the listener list.
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java.lang.String |
toString()
Returns a string representation of the object.
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private java.util.List<ModelChangeListener> listeners
public void addListener(ModelChangeListener listener)
listener
- the object that will be notifiedpublic void changed()
public void removeListener(ModelChangeListener listener)
listener
- the object to be removed.public java.lang.String toString()
toString
method returns a string that
"textually represents" this object. The result should
be a concise but informative representation that is easy for a
person to read.
It is recommended that all subclasses override this method.
The toString
method for class Object
returns a string consisting of the name of the class of which the
object is an instance, the at-sign character `@
', and
the unsigned hexadecimal representation of the hash code of the
object. In other words, this method returns a string equal to the
value of:
getClass().getName() + '@' + Integer.toHexString(hashCode())
toString
in class java.lang.Object
private final java.util.List<ModelChangeListener> getListenersForUpdate()