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The java::info Command
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The java::info Command
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Usage:
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<DD><B>java::info</B> <I>option</I> ?<I>arg arg ...</I>?

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The <B>java::info</B> command provides introspection for Java classes,
objects, and Beans.  The valid options for this command are:
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<DT><B>class</B> <I>javaObj</I><DD>
Returns the class name of the specified Java object.
<P><DT><B>events</B> <I>objOrClass</I><DD>
Returns a list of the fully-qualified names of all the event
interfaces of the Java class or object. The events of a Java class are
determined by the JavaBean design patterns. Usually, if a Java class
has the methods <B>add</B><I>XXX</I><B>Listener</B> and
<B>remove</B><I>XXX</I><B>Listener</B> and <I>XXX</I> is the name of an
interface, then <I>XXX</I> is considered as an event interface of the
Java class.

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<DT><B>baseclass</B> <I>objOrClass</I><DD>
Returns the base class name of the specified class or Java object.
For example, the base class of a Java array object of type
String[][][] is java.lang.String.  If the class or Java object is not
an array, the base class is the same as the class.
<P><DT><B>dimensions</B> <I>objOrClass</I><DD>
Returns the number of dimensions of the specified array class or Java
array object.  If the class or Java object is not an array, the number
of dimensions is 0.

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<DT><B>fields</B> ?<B>-type</B>? ?<B>-static</B>? <I>objOrClass</I><DD>
Returns a list of fieldSignatures of accessible fields of the specified
class or Java object (see <A HREF="JavaSignatures.html">Signatures</A> section).
For shadowed superclass fields, a full fieldSignature is returned.
For all other fields, the fieldSignature is simple.
If the ?<B>-type</B>? flag is used, then
each element of the result list is a pair containing the data type and
fieldSignature.  If the <B>-static</B> flag is used, static fields
will appear in the result list. Otherwise, only non-static fields
will appear in the result list.

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<DT><B>methods</B> ?<B>-type</B>? ?<B>-static</B>? <I>objOrClass</I><DD>
Returns a list of accessible methods of the specified class or
Java object. If <B>-type</B> is not used, each element in the list is
the full signature of a method. If <B>-type</B> is used, each element
in the list is in turn a list in the form {<I>type sig exceptions</I>},
where <I>type</I> is the method's return type, <I>sig</I> is the
method's full signature, and <I>exceptions</I> is a list of the
fully-qualified names of all the checked exceptions that can be thrown
by this method.  If the method does not throw exceptions,
<I>exceptions</I> is the empty list. If the <B>-static</B> flag is used,
only static methods will appear in the result list. Otherwise,
non-static methods from the class and its superclasses will appear
in the result list.

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<DT><B>constructors</B> <I>objOrClass</I><DD>
Returns a list of the full signatures of accessible constructors
of the specified class or Java object.

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<DT><B>properties</B> ?<B>-type</B>? <I>objOrClass</I><DD>
Returns a list of the names of Java Bean properties of the specified
class or Java object.  If the ?<B>-type</B>? flag is used, then each
element of the result list is a pair containing the data type and name
of the property.

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<DT><B>superclass</B> <I>objOrClass</I><DD>
Returns the name of the immediate superclass of the specified Java
object or class.  If <I>objOrClass</I> is an instance of
java.lang.Object, then the empty string is returned.
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<PRE>
<A HREF="../license.html">Copyright</A> &#169; 1997-1998 Sun Microsystems, Inc.
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