sessionbean.html

j2ee的API 1.4版本,j2ee的帮助文档

 context object in an instance variable.

 <p> This method is called with no transaction context.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>ctx</CODE> - A SessionContext interface for the instance.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../javax/ejb/EJBException.html" title="class in javax.ejb">EJBException</A></CODE> - Thrown by the method to indicate a failure
    caused by a system-level error.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/rmi/RemoteException.html" title="class or interface in java.rmi">RemoteException</A></CODE> - This exception is defined in the method
    signature to provide backward compatibility for applications written
    for the EJB 1.0 specification. Enterprise beans written for the 
    EJB 1.1 specification should throw the
    javax.ejb.EJBException instead of this exception.
    Enterprise beans written for the EJB2.0 and higher specifications
    must throw the javax.ejb.EJBException instead of this exception.</DL>
</DD>
</DL>
<HR>

<A NAME="ejbRemove()"><!-- --></A><H3>
ejbRemove</H3>
<PRE>
public void <B>ejbRemove</B>()
               throws <A HREF="../../javax/ejb/EJBException.html" title="class in javax.ejb">EJBException</A>,
                      <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/rmi/RemoteException.html" title="class or interface in java.rmi">RemoteException</A></PRE>
<DL>
<DD>A container invokes this method before it ends the life of the session
 object. This happens as a result of a client's invoking a remove
 operation, or when a container decides to terminate the session object
 after a timeout.
 
 <p> This method is called with no transaction context.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../javax/ejb/EJBException.html" title="class in javax.ejb">EJBException</A></CODE> - Thrown by the method to indicate a failure
    caused by a system-level error.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/rmi/RemoteException.html" title="class or interface in java.rmi">RemoteException</A></CODE> - This exception is defined in the method
    signature to provide backward compatibility for enterprise beans 
    written for the EJB 1.0 specification. Enterprise beans written 
    for the EJB 1.1 specification should throw the
    javax.ejb.EJBException instead of this exception.
    Enterprise beans written for the EJB2.0 and higher specifications
    must throw the javax.ejb.EJBException instead of this exception.</DL>
</DD>
</DL>
<HR>

<A NAME="ejbActivate()"><!-- --></A><H3>
ejbActivate</H3>
<PRE>
public void <B>ejbActivate</B>()
                 throws <A HREF="../../javax/ejb/EJBException.html" title="class in javax.ejb">EJBException</A>,
                        <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/rmi/RemoteException.html" title="class or interface in java.rmi">RemoteException</A></PRE>
<DL>
<DD>The activate method is called when the instance is activated
 from its "passive" state. The instance should acquire any resource
 that it has released earlier in the ejbPassivate() method.

 <p> This method is called with no transaction context.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../javax/ejb/EJBException.html" title="class in javax.ejb">EJBException</A></CODE> - Thrown by the method to indicate a failure
    caused by a system-level error.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/rmi/RemoteException.html" title="class or interface in java.rmi">RemoteException</A></CODE> - This exception is defined in the method
    signature to provide backward compatibility for enterprise beans 
    written for the EJB 1.0 specification. Enterprise beans written 
    for the EJB 1.1 specification should throw the
    javax.ejb.EJBException instead of this exception.
    Enterprise beans written for the EJB2.0 and higher specifications
    must throw the javax.ejb.EJBException instead of this exception.</DL>
</DD>
</DL>
<HR>

<A NAME="ejbPassivate()"><!-- --></A><H3>
ejbPassivate</H3>
<PRE>
public void <B>ejbPassivate</B>()
                  throws <A HREF="../../javax/ejb/EJBException.html" title="class in javax.ejb">EJBException</A>,
                         <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/rmi/RemoteException.html" title="class or interface in java.rmi">RemoteException</A></PRE>
<DL>
<DD>The passivate method is called before the instance enters
 the "passive" state. The instance should release any resources that
 it can re-acquire later in the ejbActivate() method.

 <p> After the passivate method completes, the instance must be
 in a state that allows the container to use the Java Serialization
 protocol to externalize and store away the instance's state.

 <p> This method is called with no transaction context.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../javax/ejb/EJBException.html" title="class in javax.ejb">EJBException</A></CODE> - Thrown by the method to indicate a failure
    caused by a system-level error.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/rmi/RemoteException.html" title="class or interface in java.rmi">RemoteException</A></CODE> - This exception is defined in the method
    signature to provide backward compatibility for enterprise beans 
    written for the EJB 1.0 specification. Enterprise beans written 
    for the EJB 1.1 specification should throw the
    javax.ejb.EJBException instead of this exception.
    Enterprise beans written for the EJB2.0 and higher specifications
    must throw the javax.ejb.EJBException instead of this exception.</DL>
</DD>
</DL>
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