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java.lang.Objectcom.ijchart.xychart.dataset.AbstractDataset
public abstract class AbstractDataset
Title: IJChart
Description: a chart library for the Java(tm) platform.
The abstract implemention of dataset,concrete dataset class can extend this class.Copyright: Copyright (c) 2013
Company:
Constructor Summary | |
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protected |
AbstractDataset()
No argument constructor. |
Method Summary | |
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void |
addChangeListener(IDatasetChangeListener listener)
Registers an object for notification of changes to the dataset. |
java.lang.Object |
clone()
Returns a clone of the dataset. |
void |
datasetChanged(DatasetChangeEvent event)
If the data object of dataset changed by method out of dataset,set dataset changed by this method. |
boolean |
equals(java.lang.Object obj)
Override equals method. |
protected void |
fireDatasetChanged()
Notifies all registered listeners that the dataset has changed. |
void |
forceDataSetChanged()
If the data object of dataset changed by method out of dataset,set dataset changed by this method. |
int |
hashCode()
Get hascode. |
boolean |
hasListener(IDatasetChangeListener listener)
Returns true if the specified object is registered with the dataset as a listener. |
protected void |
notifyListeners(DatasetChangeEvent event)
Notifies all registered listeners that the dataset has changed. |
void |
removeAllChangeListener()
Deregisters all object for notification of changes to the dataset. |
void |
removeChangeListener(IDatasetChangeListener listener)
Deregisters an object for notification of changes to the dataset. |
Methods inherited from class java.lang.Object |
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finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface com.ijchart.xychart.dataset.IDataset |
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isThisDataType |
Constructor Detail |
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protected AbstractDataset()
Method Detail |
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public void addChangeListener(IDatasetChangeListener listener)
addChangeListener
in interface IDataset
listener
-
the object to register.public void removeChangeListener(IDatasetChangeListener listener)
removeChangeListener
in interface IDataset
listener
-
the object to deregister.public void removeAllChangeListener()
removeAllChangeListener
in interface IDataset
public boolean hasListener(IDatasetChangeListener listener)
listener
-
the listener.
public void forceDataSetChanged()
forceDataSetChanged
in interface IDataset
public void datasetChanged(DatasetChangeEvent event)
datasetChanged
in interface IDatasetChangeListener
event
-
information about the event.protected void fireDatasetChanged()
protected void notifyListeners(DatasetChangeEvent event)
event
-
contains information about the event that triggered the notification.public java.lang.Object clone() throws java.lang.CloneNotSupportedException
IDatasetChangeListener
references that have been registered with this dataset.
clone
in class java.lang.Object
java.lang.CloneNotSupportedException
-
if the dataset does not support cloning.public boolean equals(java.lang.Object obj)
equals
in class java.lang.Object
obj
- Object
public int hashCode()
hashCode
in class java.lang.Object
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