compositetype.html

j2ee api,很好的api。我这现在有

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<DT><B>Parameters:</B><DD><CODE>itemName</CODE> - the name of the time.
<DT><B>Returns:</B><DD>the type.</DL>
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<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>
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<DD>Returns an unmodifiable Set view of all the item names defined by this <code>CompositeType</code> instance.
 The set's iterator will return the item names in ascending order.
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<DT><B>Returns:</B><DD>a <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Set.html" title="class or interface in java.util"><CODE>Set</CODE></A> of <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang"><CODE>String</CODE></A>.</DL>
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<A NAME="isValue(java.lang.Object)"><!-- --></A><H3>
isValue</H3>
<PRE>
public boolean <B>isValue</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>Tests whether <var>obj</var> is a value which could be described by this <code>CompositeType</code> instance.
 <p>
 If <var>obj</var> is null or is not an instance of <code>javax.management.openmbean.CompositeData</code>,
 <code>isValue</code> returns <code>false</code>. 
 If <var>obj</var> is an instance of <code>javax.management.openmbean.CompositeData</code>,
 its composite type is tested for equality with this <code>CompositeType</code> instance, and <code>isValue</code>
 returns <code>true</code> if and only if <A HREF="../../../javax/management/openmbean/CompositeType.html#equals(java.lang.Object)"><CODE><code>equals</code></CODE></A> 
 returns <code>true</code>.
 <br>&nbsp;
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<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/OpenType.html#isValue(java.lang.Object)">isValue</A></CODE> in class <CODE><A HREF="../../../javax/management/openmbean/OpenType.html" title="class in javax.management.openmbean">OpenType</A></CODE></DL>
</DD>
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<DT><B>Parameters:</B><DD><CODE>obj</CODE> - the value whose open type is to be tested for equality with this <code>CompositeType</code> instance.
<DT><B>Returns:</B><DD><code>true</code> if <var>obj</var> is a value for this composite type, <code>false</code> otherwise.</DL>
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<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 <code>obj</code> parameter with this <code>CompositeType</code> instance for equality. 
 <p>
 Two <code>CompositeType</code> instances are equal if and only if all of the following statements are true:
 <ul>
 <li>their type names are equal</li>
 <li>their items' names and types are equal</li>
 </ul>
 <br>&nbsp;
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/OpenType.html#equals(java.lang.Object)">equals</A></CODE> in class <CODE><A HREF="../../../javax/management/openmbean/OpenType.html" title="class in javax.management.openmbean">OpenType</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - the object to be compared for equality with this <code>CompositeType</code> instance;
		    if <var>obj</var> is <code>null</code>, <code>equals</code> returns <code>false</code>.
<DT><B>Returns:</B><DD><code>true</code> if the specified object is equal to this <code>CompositeType</code> instance.</DL>
</DD>
</DL>
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<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
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<DD>Returns the hash code value for this <code>CompositeType</code> instance. 
 <p>
 The hash code of a <code>CompositeType</code> instance is the sum of the hash codes
 of all elements of information used in <code>equals</code> comparisons 
 (ie: name, items names, items types). 
 This ensures that <code> t1.equals(t2) </code> implies that <code> t1.hashCode()==t2.hashCode() </code> 
 for any two <code>CompositeType</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>
 As <code>CompositeType</code> instances are immutable, the hash code for this instance is calculated once,
 on the first call to <code>hashCode</code>, and then the same value is returned for subsequent calls.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/OpenType.html#hashCode()">hashCode</A></CODE> in class <CODE><A HREF="../../../javax/management/openmbean/OpenType.html" title="class in javax.management.openmbean">OpenType</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the hash code value for this <code>CompositeType</code> instance</DL>
</DD>
</DL>
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<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>CompositeType</code> instance. 
 <p>
 The string representation consists of 
 the name of this class (ie <code>javax.management.openmbean.CompositeType</code>), the type name for this instance, 
 and the list of the items names and types string representation of this instance.
 <p>
 As <code>CompositeType</code> instances are immutable, the string representation for this instance is calculated once,
 on the first call to <code>toString</code>, and then the same value is returned for subsequent calls.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/openmbean/OpenType.html#toString()">toString</A></CODE> in class <CODE><A HREF="../../../javax/management/openmbean/OpenType.html" title="class in javax.management.openmbean">OpenType</A></CODE></DL>
</DD>
<DD><DL>

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