com.sonicsw.xq
Interface XQAccessor

public interface XQAccessor

Implementations of the XQAccessor interface provide the ability to extract data from named targets from within the service. Examples of common targets are the XQMessage and XQPart.

Method Summary

void	init(XQInitContext context) performs any initialization tasks for the acessor.
java.lang.Object	invoke(java.lang.String expression, java.util.HashMap targets) performs the data acquisition

Method Detail

init

void init(XQInitContext context)

performs any initialization tasks for the acessor.

Parameters:

context - contains configuration params and log reference

invoke

java.lang.Object invoke(java.lang.String expression,
                        java.util.HashMap targets)
                        throws XQAccessorException

performs the data acquisition

Parameters:

expression - the instruction to perform

targets - the objects containing the data

Returns:

the object taken out of the targets

Throws:

XQAccessorException - thrown when an unexpected error occurs during invocation