tabulardata.html

j2ee api,很好的api。我这现在有

</DD>
</DL>
<HR>

<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>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>
<HR>

<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/TabularData.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>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
<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>
<HR>

<A NAME="clear()"><!-- --></A><H3>
clear</H3>
<PRE>
public void <B>clear</B>()</PRE>
<DL>
<DD>Removes all <tt>CompositeData</tt> values (ie rows) from this <tt>TabularData</tt> instance.
<P>
<DD><DL>
</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 (ie the index values) of the <tt>CompositeData</tt> values (ie the rows) 
 contained in this <tt>TabularData</tt> instance. The returned Set can then be used to iterate over the keys.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>a set view of the index values used in this <tt>TabularData</tt> instance.</DL>
</DD>
</DL>
<HR>

<A NAME="values()"><!-- --></A><H3>
values</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A> <B>values</B>()</PRE>
<DL>
<DD>Returns a collection view of the <tt>CompositeData</tt> values (ie the rows) 
 contained in this <tt>TabularData</tt> instance. 
 The returned collection can then be used to iterate over the values.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>a collection view of the rows contained in this <tt>TabularData</tt> instance.</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</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;obj)</PRE>
<DL>
<DD>Compares the specified <var>obj</var> parameter with this <code>TabularData</code> instance for equality. 
 <p>
 Returns <tt>true</tt> if and only if all of the following statements are true:
 <ul>
 <li><var>obj</var> is non null,</li>
 <li><var>obj</var> also implements the <code>TabularData</code> interface,</li>
 <li>their row types are equal</li>
 <li>their contents (ie index to value mappings) are equal</li>
 </ul>
 This ensures that this <tt>equals</tt> method works properly for <var>obj</var> parameters which are
 different implementations of the <code>TabularData</code> interface.
 <br>&nbsp;
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - the object to be compared for equality with this <code>TabularData</code> instance;
<DT><B>Returns:</B><DD><code>true</code> if the specified object is equal to this <code>TabularData</code> instance.</DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD>Returns the hash code value for this <code>TabularData</code> instance. 
 <p>
 The hash code of a <code>TabularData</code> instance is the sum of the hash codes
 of all elements of information used in <code>equals</code> comparisons 
 (ie: its <i>tabular type</i> and its content, where the content is defined as all the index to value mappings). 
 <p>
 This ensures that <code> t1.equals(t2) </code> implies that <code> t1.hashCode()==t2.hashCode() </code> 
 for any two <code>TabularDataSupport</code> instances <code>t1</code> and <code>t2</code>, 
 as required by the general contract of the method
 <a href="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#hashCode()"> 
 <code>Object.hashCode</code> </a>.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the hash code value for this <code>TabularDataSupport</code> instance</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>toString</B>()</PRE>
<DL>
<DD>Returns a string representation of this <code>TabularData</code> instance. 
 <p>
 The string representation consists of the name of the implementing class, 
 and the tabular type of this instance.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>a string representation of this <code>TabularData</code> instance</DL>
</DD>
</DL>
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