serializationhelper.html

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<B>Method Detail</B></FONT></TH>
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<A NAME="isSerializable(java.lang.String)"><!-- --></A><H3>
isSerializable</H3>
<PRE>
public static boolean <B>isSerializable</B>(java.lang.String&nbsp;classname)</PRE>
<DL>
<DD>checks whether a class is serializable
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>classname</CODE> - the class to check
<DT><B>Returns:</B><DD>true if the class or one of its ancestors implements
                        the Serializable interface, otherwise false (also if 
                        the class cannot be loaded)</DL>
</DD>
</DL>
<HR>

<A NAME="isSerializable(java.lang.Class)"><!-- --></A><H3>
isSerializable</H3>
<PRE>
public static boolean <B>isSerializable</B>(java.lang.Class&nbsp;c)</PRE>
<DL>
<DD>checks whether a class is serializable
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>c</CODE> - the class to check
<DT><B>Returns:</B><DD>true if the class or one of its ancestors implements
                        the Serializable interface, otherwise false</DL>
</DD>
</DL>
<HR>

<A NAME="hasUID(java.lang.String)"><!-- --></A><H3>
hasUID</H3>
<PRE>
public static boolean <B>hasUID</B>(java.lang.String&nbsp;classname)</PRE>
<DL>
<DD>checks whether the given class contains a serialVersionUID
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>classname</CODE> - the class to check
<DT><B>Returns:</B><DD>true if the class contains a serialVersionUID, 
                        otherwise false (also if the class is not
                        implementing serializable or cannot be loaded)</DL>
</DD>
</DL>
<HR>

<A NAME="hasUID(java.lang.Class)"><!-- --></A><H3>
hasUID</H3>
<PRE>
public static boolean <B>hasUID</B>(java.lang.Class&nbsp;c)</PRE>
<DL>
<DD>checks whether the given class contains a serialVersionUID
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>c</CODE> - the class to check
<DT><B>Returns:</B><DD>true if the class contains a serialVersionUID, 
                        otherwise false (also if the class is not
                        implementing serializable)</DL>
</DD>
</DL>
<HR>

<A NAME="needsUID(java.lang.String)"><!-- --></A><H3>
needsUID</H3>
<PRE>
public static boolean <B>needsUID</B>(java.lang.String&nbsp;classname)</PRE>
<DL>
<DD>checks whether a class needs to declare a serialVersionUID, i.e., it
 implements the java.io.Serializable interface but doesn't declare a
 serialVersionUID.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>classname</CODE> - the class to check
<DT><B>Returns:</B><DD>true if the class needs to declare one, false otherwise
                        (also if the class cannot be loaded!)</DL>
</DD>
</DL>
<HR>

<A NAME="needsUID(java.lang.Class)"><!-- --></A><H3>
needsUID</H3>
<PRE>
public static boolean <B>needsUID</B>(java.lang.Class&nbsp;c)</PRE>
<DL>
<DD>checks whether a class needs to declare a serialVersionUID, i.e., it
 implements the java.io.Serializable interface but doesn't declare a
 serialVersionUID.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>c</CODE> - the class to check
<DT><B>Returns:</B><DD>true if the class needs to declare one, false otherwise</DL>
</DD>
</DL>
<HR>

<A NAME="getUID(java.lang.String)"><!-- --></A><H3>
getUID</H3>
<PRE>
public static long <B>getUID</B>(java.lang.String&nbsp;classname)</PRE>
<DL>
<DD>reads or creates the serialVersionUID for the given class
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>classname</CODE> - the class to get the serialVersionUID for
<DT><B>Returns:</B><DD>the UID, 0L for non-serializable classes (or if the
                        class cannot be loaded)</DL>
</DD>
</DL>
<HR>

<A NAME="getUID(java.lang.Class)"><!-- --></A><H3>
getUID</H3>
<PRE>
public static long <B>getUID</B>(java.lang.Class&nbsp;c)</PRE>
<DL>
<DD>reads or creates the serialVersionUID for the given class
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>c</CODE> - the class to get the serialVersionUID for
<DT><B>Returns:</B><DD>the UID, 0L for non-serializable classes</DL>
</DD>
</DL>
<HR>

<A NAME="write(java.lang.String, java.lang.Object)"><!-- --></A><H3>
write</H3>
<PRE>
public static void <B>write</B>(java.lang.String&nbsp;filename,
                         java.lang.Object&nbsp;o)
                  throws java.lang.Exception</PRE>
<DL>
<DD>serializes the given object to the specified file
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filename</CODE> - the file to write the object to<DD><CODE>o</CODE> - the object to serialize
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if serialization fails</DL>
</DD>
</DL>
<HR>

<A NAME="write(java.io.OutputStream, java.lang.Object)"><!-- --></A><H3>
write</H3>
<PRE>
public static void <B>write</B>(java.io.OutputStream&nbsp;stream,
                         java.lang.Object&nbsp;o)
                  throws java.lang.Exception</PRE>
<DL>
<DD>serializes the given object to the specified stream
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>stream</CODE> - the stream to write the object to<DD><CODE>o</CODE> - the object to serialize
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if serialization fails</DL>
</DD>
</DL>
<HR>

<A NAME="read(java.lang.String)"><!-- --></A><H3>
read</H3>
<PRE>
public static java.lang.Object <B>read</B>(java.lang.String&nbsp;filename)
                             throws java.lang.Exception</PRE>
<DL>
<DD>deserializes the given file and returns the object from it
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filename</CODE> - the file to deserialize from
<DT><B>Returns:</B><DD>the deserialized object
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if deserialization fails</DL>
</DD>
</DL>
<HR>

<A NAME="read(java.io.InputStream)"><!-- --></A><H3>
read</H3>
<PRE>
public static java.lang.Object <B>read</B>(java.io.InputStream&nbsp;stream)
                             throws java.lang.Exception</PRE>
<DL>
<DD>deserializes from the given stream and returns the object from it
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>stream</CODE> - the stream to deserialize from
<DT><B>Returns:</B><DD>the deserialized object
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if deserialization fails</DL>
</DD>
</DL>
<HR>

<A NAME="getRevision()"><!-- --></A><H3>
getRevision</H3>
<PRE>
public java.lang.String <B>getRevision</B>()</PRE>
<DL>
<DD>Returns the revision string.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../weka/core/RevisionHandler.html#getRevision()">getRevision</A></CODE> in interface <CODE><A HREF="../../weka/core/RevisionHandler.html" title="interface in weka.core">RevisionHandler</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the revision</DL>
</DD>
</DL>
<HR>

<A NAME="main(java.lang.String[])"><!-- --></A><H3>
main</H3>
<PRE>
public static void <B>main</B>(java.lang.String[]&nbsp;args)</PRE>
<DL>
<DD>Outputs information about a class on the commandline, takes class
 name as arguments.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>args</CODE> - the classnames to check</DL>
</DD>
</DL>
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