Package org.rapidcontext.core.proc

Class DefaultInterceptor

java.lang.Object

org.rapidcontext.core.proc.Interceptor

org.rapidcontext.core.proc.DefaultInterceptor

public class DefaultInterceptor
extends Interceptor

The default procedure call interceptor. This interceptor provides the standard implementation for all methods (necessary since it is the last link in the interceptor chain). All actual procedure calls will be delegated to the actual procedure implementation, and resource reservation will be delegated to the call context.

Version:

1.0

Constructor Summary

Constructors

Constructor	Description
DefaultInterceptor()	Creates a new default interceptor.

Method Summary

Modifier and Type	Method	Description
Object	call(CallContext cx, Procedure proc, Bindings bindings)	Calls a procedure with the specified bindings.
void	releaseAll(CallContext cx, boolean commit)	Releases all reserved adapter connections.
void	reserve(CallContext cx, Procedure proc)	Reserves all adapter connections needed for executing the specified procedure.

Methods inherited from class org.rapidcontext.core.proc.Interceptor

call, getParent, reserve

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DefaultInterceptor

public DefaultInterceptor()

Creates a new default interceptor.

Method Details

reserve

public void reserve(CallContext cx,
 Procedure proc)
             throws ProcedureException

Reserves all adapter connections needed for executing the specified procedure. All connections needed by imported procedures will also be reserved recursively.

Overrides:

reserve in class Interceptor

Parameters:

cx - the procedure context

proc - the procedure definition

Throws:

ProcedureException - if the connections couldn't be reserved

releaseAll

public void releaseAll(CallContext cx,
 boolean commit)

Releases all reserved adapter connections. The connections will either be committed or rolled back, depending on the commit flag.

Overrides:

releaseAll in class Interceptor

Parameters:

cx - the procedure context

commit - the commit (or rollback) flag

call

public Object call(CallContext cx,
 Procedure proc,
 Bindings bindings)
            throws ProcedureException

Calls a procedure with the specified bindings.

Overrides:

call in class Interceptor

Parameters:

cx - the procedure context

proc - the procedure definition

bindings - the procedure bindings

Returns:

the result of the call, or null if the call produced no result

Throws:

ProcedureException - if the call execution caused an error