siena::predicate Class Reference

interface of a generic predicate in the Siena data model. More...

#include <types.h>

List of all members.

Classes
class	iterator
	interface of a generic predicate iterator. More...
Public Member Functions
virtual	~predicate ()
	virtual destructor
virtual iterator *	first () const =0
	returns an iterator over this predicate.
virtual bool	covers (const message &m) const throw ()
	applies this predicate to a message.

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Detailed Description

interface of a generic predicate in the Siena data model.

A predicate is a set of filters representing a logical disjunctions of conjunctions of elementary conditions. Individual conjunctions can be accessed sequentially through a predicate::iterator.

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Member Function Documentation

virtual bool siena::predicate::covers

(

const message &

m

)

const throw () [virtual]

applies this predicate to a message.

This is a naive implementation of the matching function.

Returns:

true iff this predicate matches (i.e., covers) the given message.

virtual iterator* siena::predicate::first

(

)

const [pure virtual]

returns an iterator over this predicate.

Returns:

iterator pointing to the first filter in this predicate, or NULL if this predicate is empty.

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The documentation for this class was generated from the following file:

• types.h