compositedatasupport.html

j2ee api,很好的api。我这现在有

<HR>

<A NAME="containsKey(java.lang.String)"><!-- --></A><H3>
containsKey</H3>
<PRE>
public boolean <B>containsKey</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;key)</PRE>
<DL>
<DD>Returns <tt>true</tt> if and only if this <tt>CompositeData</tt> instance contains 
 an item whose name is <tt>key</tt>. 
 If <tt>key</tt> is a null or empty String, this method simply returns false.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/CompositeData.html#containsKey(java.lang.String)">containsKey</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/CompositeData.html" title="interface in javax.management.openmbean">CompositeData</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key to be tested.
<DT><B>Returns:</B><DD>true if this <tt>CompositeData</tt> contains the key.</DL>
</DD>
</DL>
<HR>

<A NAME="containsValue(java.lang.Object)"><!-- --></A><H3>
containsValue</H3>
<PRE>
public boolean <B>containsValue</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;value)</PRE>
<DL>
<DD>Returns <tt>true</tt> if and only if this <tt>CompositeData</tt> instance contains an item 
 whose value is <tt>value</tt>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/CompositeData.html#containsValue(java.lang.Object)">containsValue</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/CompositeData.html" title="interface in javax.management.openmbean">CompositeData</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the value to be tested.
<DT><B>Returns:</B><DD>true if this <tt>CompositeData</tt> contains the value.</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 an unmodifiable Collection view of the item values contained in this <tt>CompositeData</tt> instance.
 The returned collection's iterator will return the values in the ascending lexicographic order of the corresponding 
 item names.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/CompositeData.html#values()">values</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/CompositeData.html" title="interface in javax.management.openmbean">CompositeData</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the values.</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>CompositeDataSupport</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>CompositeData</code> interface,</li>
 <li>their composite types are equal</li>
 <li>their contents, i.e. (name, value) pairs 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>CompositeData</code> interface, with the restrictions mentioned in the
 <tt><a href="http://java.sun.com/j2se/1.3/docs/api/java/util/Collection.html#equals(java.lang.Object)">equals</a></tt>
 method of the <tt>java.util.Collection</tt> interface.
 <br>&nbsp;
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/CompositeData.html#equals(java.lang.Object)">equals</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/CompositeData.html" title="interface in javax.management.openmbean">CompositeData</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - the object to be compared for equality with this <code>CompositeDataSupport</code> instance;
<DT><B>Returns:</B><DD><code>true</code> if the specified object is equal to this <code>CompositeDataSupport</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>CompositeDataSupport</code> instance. 
 <p>
 The hash code of a <code>CompositeDataSupport</code> instance is the sum of the hash codes
 of all elements of information used in <code>equals</code> comparisons 
 (ie: its <i>composite type</i> and all the item values). 
 <p>
 This ensures that <code> t1.equals(t2) </code> implies that <code> t1.hashCode()==t2.hashCode() </code> 
 for any two <code>CompositeDataSupport</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>
 However, note that another instance of a class implementing the <code>CompositeData</code> interface
 may be equal to this <code>CompositeDataSupport</code> instance as defined by <A HREF="../../../javax/management/openmbean/CompositeDataSupport.html#equals(java.lang.Object)"><CODE>equals(java.lang.Object)</CODE></A>, 
 but may have a different hash code if it is calculated differently.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/CompositeData.html#hashCode()">hashCode</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/CompositeData.html" title="interface in javax.management.openmbean">CompositeData</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the hash code value for this <code>CompositeDataSupport</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>CompositeDataSupport</code> instance. 
 <p>
 The string representation consists of the name of this class (ie <code>javax.management.openmbean.CompositeDataSupport</code>), 
 the string representation of the composite type of this instance, and the string representation of the contents
 (ie list the itemName=itemValue mappings).
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/CompositeData.html#toString()">toString</A></CODE> in interface <CODE><A HREF="../../../javax/management/openmbean/CompositeData.html" title="interface in javax.management.openmbean">CompositeData</A></CODE></DL>
</DD>
<DD><DL>

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