abstractdataset.html

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<A NAME="AbstractDataset()"><!-- --></A><H3>
AbstractDataset</H3>
<PRE>
protected <B>AbstractDataset</B>()</PRE>
<DL>
<DD>Constructs a dataset.
 <P>
 By default, the dataset is assigned to its own group.
<P>
</DL>

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<A NAME="getGroup()"><!-- --></A><H3>
getGroup</H3>
<PRE>
public <A HREF="../../../org/jfree/data/DatasetGroup.html">DatasetGroup</A> <B>getGroup</B>()</PRE>
<DL>
<DD>Returns the dataset group for the dataset.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/Dataset.html#getGroup()">getGroup</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/Dataset.html">Dataset</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the dataset group.</DL>
</DD>
</DL>
<HR>

<A NAME="setGroup(org.jfree.data.DatasetGroup)"><!-- --></A><H3>
setGroup</H3>
<PRE>
public void <B>setGroup</B>(<A HREF="../../../org/jfree/data/DatasetGroup.html">DatasetGroup</A>&nbsp;group)</PRE>
<DL>
<DD>Sets the dataset group for the dataset.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/Dataset.html#setGroup(org.jfree.data.DatasetGroup)">setGroup</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/Dataset.html">Dataset</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>group</CODE> - the dataset group.</DL>
</DD>
</DL>
<HR>

<A NAME="addChangeListener(org.jfree.data.DatasetChangeListener)"><!-- --></A><H3>
addChangeListener</H3>
<PRE>
public void <B>addChangeListener</B>(<A HREF="../../../org/jfree/data/DatasetChangeListener.html">DatasetChangeListener</A>&nbsp;listener)</PRE>
<DL>
<DD>Registers an object to receive notification of changes to the dataset.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/Dataset.html#addChangeListener(org.jfree.data.DatasetChangeListener)">addChangeListener</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/Dataset.html">Dataset</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>listener</CODE> - the object to register.</DL>
</DD>
</DL>
<HR>

<A NAME="removeChangeListener(org.jfree.data.DatasetChangeListener)"><!-- --></A><H3>
removeChangeListener</H3>
<PRE>
public void <B>removeChangeListener</B>(<A HREF="../../../org/jfree/data/DatasetChangeListener.html">DatasetChangeListener</A>&nbsp;listener)</PRE>
<DL>
<DD>Deregisters an object so that it no longer receives notification of changes to the dataset.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/jfree/data/Dataset.html#removeChangeListener(org.jfree.data.DatasetChangeListener)">removeChangeListener</A></CODE> in interface <CODE><A HREF="../../../org/jfree/data/Dataset.html">Dataset</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>listener</CODE> - the object to deregister.</DL>
</DD>
</DL>
<HR>

<A NAME="fireDatasetChanged()"><!-- --></A><H3>
fireDatasetChanged</H3>
<PRE>
protected void <B>fireDatasetChanged</B>()</PRE>
<DL>
<DD>Notifies all registered listeners that the dataset has changed.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="notifyListeners(org.jfree.data.DatasetChangeEvent)"><!-- --></A><H3>
notifyListeners</H3>
<PRE>
protected void <B>notifyListeners</B>(<A HREF="../../../org/jfree/data/DatasetChangeEvent.html">DatasetChangeEvent</A>&nbsp;event)</PRE>
<DL>
<DD>Notifies all registered listeners that the dataset has changed.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>event</CODE> - contains information about the event that triggered the notification.</DL>
</DD>
</DL>
<HR>

<A NAME="clone()"><!-- --></A><H3>
clone</H3>
<PRE>
public java.lang.Object <B>clone</B>()
                       throws java.lang.CloneNotSupportedException</PRE>
<DL>
<DD>Returns a clone of the dataset. 
 <p>
 The cloned dataset will NOT include the <A HREF="../../../org/jfree/data/DatasetChangeListener.html"><CODE>DatasetChangeListener</CODE></A> references that have
 been registered with this dataset.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>clone</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>A clone.
<DT><B>Throws:</B>
<DD><CODE>java.lang.CloneNotSupportedException</CODE> - if the dataset does not support cloning.</DL>
</DD>
</DL>
<HR>

<A NAME="validateObject()"><!-- --></A><H3>
validateObject</H3>
<PRE>
public void <B>validateObject</B>()
                    throws java.io.InvalidObjectException</PRE>
<DL>
<DD>Validates the object. We use this opportunity to call listeners who have registered during the
 deserialization process, as listeners are not serialized. This method is called by the 
 serialization system after the entire graph is read.
  
 This object has registered itself to the system with a priority of 10. Other callbacks may 
 register with a higher priority number to be called before this object, or with a lower priority
 number to be called after the listeners were notified.
 
 All listeners are supposed to have register by now, either in their readObject or validateObject 
 methods. Notify them that this dataset has changed.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>validateObject</CODE> in interface <CODE>java.io.ObjectInputValidation</CODE></DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.io.InvalidObjectException</CODE> - If the object cannot validate itself.</DL>
</DD>
</DL>
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