tabulardatasupport.html

j2ee api,很好的api。我这现在有

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<A NAME="put(javax.management.openmbean.CompositeData)"><!-- --></A><H3>
put</H3>
<PRE>
public void <B>put</B>(<A HREF="../../../javax/management/openmbean/CompositeData.html" title="interface in javax.management.openmbean">CompositeData</A>&nbsp;value)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../javax/management/openmbean/TabularData.html" title="interface in javax.management.openmbean">TabularData</A></CODE></B></DD>
<DD>Adds <var>value</var> to this <tt>TabularData</tt> instance.
 The composite type of <var>value</var> must be the same as this
 instance's row type (ie the composite type returned by
 <tt>this.getTabularType().<A HREF="../../../javax/management/openmbean/TabularType.html#getRowType()"><CODE>getRowType()</CODE></A></tt>), and there must not already be an existing
 value in this <tt>TabularData</tt> instance whose index is the
 same as the one calculated for the <var>value</var> to be
 added. The index for <var>value</var> is calculated according
 to this <tt>TabularData</tt> instance's <tt>TabularType</tt>
 definition (see <tt>TabularType.<A HREF="../../../javax/management/openmbean/TabularType.html#getIndexNames()"><CODE>getIndexNames()</CODE></A></tt>).
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/TabularData.html#put(javax.management.openmbean.CompositeData)">put</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/TabularData.html" title="interface in javax.management.openmbean">TabularData</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the composite data value to be added as a new row to this <tt>TabularData</tt> instance;
					  must be of the same composite type as this instance's row type;
					  must not be null.</DL>
</DD>
</DL>
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<A NAME="remove(java.lang.Object)"><!-- --></A><H3>
remove</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> <B>remove</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;key)</PRE>
<DL>
<DD>This method simply calls <tt>remove((Object[]) key)</tt>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Map.html#remove(java.lang.Object)" title="class or interface in java.util">remove</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Map.html" title="class or interface in java.util">Map</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - an <tt>Object[]</tt> representing the key to remove.
<DT><B>Returns:</B><DD>previous value associated with specified key, or <tt>null</tt>
	       if there was no mapping for key.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/NullPointerException.html" title="class or interface in java.lang">NullPointerException</A></CODE> - if the <var>key</var> is <tt>null</tt>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/ClassCastException.html" title="class or interface in java.lang">ClassCastException</A></CODE> - if the <var>key</var> is not of the type <tt>Object[]</tt>
<DD><CODE><A HREF="../../../javax/management/openmbean/InvalidKeyException.html" title="class in javax.management.openmbean">InvalidKeyException</A></CODE> - if the <var>key</var> does not conform to this <tt>TabularData</tt> instance's 
				     <tt>TabularType</tt> definition</DL>
</DD>
</DL>
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<A NAME="remove(java.lang.Object[])"><!-- --></A><H3>
remove</H3>
<PRE>
public <A HREF="../../../javax/management/openmbean/CompositeData.html" title="interface in javax.management.openmbean">CompositeData</A> <B>remove</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>[]&nbsp;key)</PRE>
<DL>
<DD>Removes the <tt>CompositeData</tt> value whose index is <var>key</var> from this <tt>TabularData</tt> instance,
 and returns the removed value, or returns <tt>null</tt> if there is no value whose index is <var>key</var>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/TabularData.html#remove(java.lang.Object[])">remove</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/TabularData.html" title="interface in javax.management.openmbean">TabularData</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the index of the value to get in this <tt>TabularData</tt> instance;
		    must be valid with this <tt>TabularData</tt> instance's row type definition;
		    must not be null.
<DT><B>Returns:</B><DD>previous value associated with specified key, or <tt>null</tt>
	       if there was no mapping for key.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/NullPointerException.html" title="class or interface in java.lang">NullPointerException</A></CODE> - if the <var>key</var> is <tt>null</tt>
<DD><CODE><A HREF="../../../javax/management/openmbean/InvalidKeyException.html" title="class in javax.management.openmbean">InvalidKeyException</A></CODE> - if the <var>key</var> does not conform to this <tt>TabularData</tt> instance's 
				     <tt>TabularType</tt> definition</DL>
</DD>
</DL>
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<A NAME="putAll(java.util.Map)"><!-- --></A><H3>
putAll</H3>
<PRE>
public void <B>putAll</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Map.html" title="class or interface in java.util">Map</A>&nbsp;t)</PRE>
<DL>
<DD>Add all the values contained in the specified map <var>t</var> to this <tt>TabularData</tt> instance. 
 This method converts the collection of values contained in this map into an array of <tt>CompositeData</tt> values,
 if possible, and then call the method <tt>putAll(CompositeData[])</tt>. Note that the keys used in the specified
 map <var>t</var> are ignored. This method allows, for example to add the content of another <tt>TabularData</tt> 
 instance with the same row type (but possibly different index names) into this instance.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Map.html#putAll(java.util.Map)" title="class or interface in java.util">putAll</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Map.html" title="class or interface in java.util">Map</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>t</CODE> - the map whose values are to be added as new rows to this <tt>TabularData</tt> instance;
		  if <var>t</var> is <tt>null</tt> or empty, this method returns without doing anything.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/NullPointerException.html" title="class or interface in java.lang">NullPointerException</A></CODE> - if a value in <var>t</var> is <tt>null</tt>.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/ClassCastException.html" title="class or interface in java.lang">ClassCastException</A></CODE> - if a value in <var>t</var> is not an instance of <tt>CompositeData</tt>.
<DD><CODE><A HREF="../../../javax/management/openmbean/InvalidOpenTypeException.html" title="class in javax.management.openmbean">InvalidOpenTypeException</A></CODE> - if a value in <var>t</var> does not conform to 
					  this <tt>TabularData</tt> instance's row type definition.
<DD><CODE><A HREF="../../../javax/management/openmbean/KeyAlreadyExistsException.html" title="class in javax.management.openmbean">KeyAlreadyExistsException</A></CODE> - if the index for a value in <var>t</var>, calculated according to 
					  this <tt>TabularData</tt> instance's <tt>TabularType</tt> definition 
					  already maps to an existing value in this instance,
					  or two values in <var>t</var> have the same index.</DL>
</DD>
</DL>
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<A NAME="putAll(javax.management.openmbean.CompositeData[])"><!-- --></A><H3>
putAll</H3>
<PRE>
public void <B>putAll</B>(<A HREF="../../../javax/management/openmbean/CompositeData.html" title="interface in javax.management.openmbean">CompositeData</A>[]&nbsp;values)</PRE>
<DL>
<DD>Add all the elements in <var>values</var> to this <tt>TabularData</tt> instance. 
 If any  element in <var>values</var> does not satisfy the constraints defined in <A HREF="../../../javax/management/openmbean/TabularDataSupport.html#put(javax.management.openmbean.CompositeData)"><CODE><tt>put</tt></CODE></A>,
 or if any two elements in <var>values</var> have the same index calculated according to this <tt>TabularData</tt> 
 instance's <tt>TabularType</tt> definition, then an exception describing the failure is thrown 
 and no element of <var>values</var> is added,  thus leaving this <tt>TabularData</tt> instance unchanged.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/TabularData.html#putAll(javax.management.openmbean.CompositeData[])">putAll</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/TabularData.html" title="interface in javax.management.openmbean">TabularData</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>values</CODE> - the array of composite data values to be added as new rows to this <tt>TabularData</tt> instance;
		       if <var>values</var> is <tt>null</tt> or empty, this method returns without doing anything.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/NullPointerException.html" title="class or interface in java.lang">NullPointerException</A></CODE> - if an element of <var>values</var> is <tt>null</tt>
<DD><CODE><A HREF="../../../javax/management/openmbean/InvalidOpenTypeException.html" title="class in javax.management.openmbean">InvalidOpenTypeException</A></CODE> - if an element of <var>values</var> does not conform to 
					  this <tt>TabularData</tt> instance's row type definition 
					  (ie its <tt>TabularType</tt> definition)
<DD><CODE><A HREF="../../../javax/management/openmbean/KeyAlreadyExistsException.html" title="class in javax.management.openmbean">KeyAlreadyExistsException</A></CODE> - if the index for an element of <var>values</var>, calculated according to 
					  this <tt>TabularData</tt> instance's <tt>TabularType</tt> definition 
					  already maps to an existing value in this instance,
					  or two elements of <var>values</var> have the same index</DL>
</DD>
</DL>
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<A NAME="clear()"><!-- --></A><H3>
clear</H3>
<PRE>
public void <B>clear</B>()</PRE>
<DL>
<DD>Removes all rows from this <code>TabularDataSupport</code> instance.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/TabularData.html#clear()">clear</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/TabularData.html" title="interface in javax.management.openmbean">TabularData</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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<A NAME="size()"><!-- --></A><H3>
size</H3>
<PRE>
public int <B>size</B>()</PRE>
<DL>
<DD>Returns the number of rows in this <code>TabularDataSupport</code> instance.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/TabularData.html#size()">size</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/TabularData.html" title="interface in javax.management.openmbean">TabularData</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of rows in this <code>TabularDataSupport</code> instance.</DL>
</DD>
</DL>
<HR>

<A NAME="isEmpty()"><!-- --></A><H3>
isEmpty</H3>
<PRE>
public boolean <B>isEmpty</B>()</PRE>
<DL>
<DD>Returns <tt>true</tt> if this <code>TabularDataSupport</code> instance contains no rows.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/TabularData.html#isEmpty()">isEmpty</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/TabularData.html" title="interface in javax.management.openmbean">TabularData</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD><tt>true</tt> if this <code>TabularDataSupport</code> instance contains no rows.</DL>
</DD>
</DL>
<HR>

<A NAME="keySet()"><!-- --></A><H3>
keySet</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A> <B>keySet</B>()</PRE>
<DL>
<DD>Returns a set view of the keys contained in the underlying map of this <code>TabularDataSupport</code> instance,
 and used to index the rows. Each key contained in this set is an unmodifiable List.  
 The set is backed by the underlying map of this <code>TabularDataSupport</code> instance, 
 so changes to the <code>TabularDataSupport</code> instance are reflected in the set, and vice-versa.

 The set supports element removal, which removes the
 corresponding row from this <code>TabularDataSupport</code> instance, via the <tt>Iterator.remove</tt>,
 <tt>Set.remove</tt>, <tt>removeAll</tt>, <tt>retainAll</tt>, and
 <tt>clear</tt> operations.  
 It does not support the <tt>add</tt> or <tt>addAll</tt> operations
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/TabularData.html#keySet()">keySet</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/TabularData.html" title="interface in javax.management.openmbean">TabularData</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a set view of the keys used to index the rows of this <code>TabularDataSupport</code> instance.</DL>
</DD>
</DL>
<HR>

<A NAME="values()"><!-- --></A><H3>