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CosNotifyFilter::Filter Interface Reference

Interface used to manipulate and evaluate filters. More...

import "CosNotifyFilter.idl";

List of all members.

Public Methods
ConstraintInfoSeq	add_constraints (in ConstraintExpSeq constraint_list) raises (InvalidConstraint)
	Add constraints to a filter.
void	modify_constraints (in ConstraintIDSeq del_list, in ConstraintInfoSeq modify_list) raises (InvalidConstraint, ConstraintNotFound)
	Modify and/or remove multiple constraints in the Filter.
ConstraintInfoSeq	get_constraints (in ConstraintIDSeq id_list) raises (ConstraintNotFound)
	Obtain the one or more constraints given their IDs.
ConstraintInfoSeq	get_all_constraints ()
	The all the constraints in the Filter.
void	remove_all_constraints ()
	Remove all the constraints from the Filter.
void	destroy ()
	Destroy the Filter.
boolean	match (in any filterable_data) raises (UnsupportedFilterableData)
	Match a regular event against the constraints in the filter.
boolean	match_structured (in CosNotification::StructuredEvent filterable_data) raises (UnsupportedFilterableData)
	Match a structured event against the constraints in the filter.
boolean	match_typed (in CosNotification::PropertySeq filterable_data) raises (UnsupportedFilterableData)
	Match a typed event against the constraints in the filter.
CallbackID	attach_callback (in CosNotifyComm::NotifySubscribe callback)
	Add a callback interface to the filter.
void	detach_callback (in CallbackID callback) raises ( CallbackNotFound )
	Remove a callback interface from the filter.
CallbackIDSeq	get_callbacks ()
	Return all the callback IDs in the Filter object.
Public Attributes
readonly attribute string	constraint_grammar
	Constraint grammar used in this filter.

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Detailed Description

Interface used to manipulate and evaluate filters.

An event filter posseses multiple constraints, each constraint applies to a limited range of event types, the filter is accepted if it matches one or more constraint expressions that apply to its event type.

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Member Function Documentation

ConstraintInfoSeq CosNotifyFilter::Filter::add_constraints (  in ConstraintExpSeq    constraint_list )  raises (InvalidConstraint)

Add constraints to a filter. Return the constraints and their IDs. Exceptions: InvalidConstraint  if one or more constraints contain invalid an invalid expression in the Filter constraint grammar.

CallbackID CosNotifyFilter::Filter::attach_callback (  in CosNotifyComm::NotifySubscribe    callback )

Add a callback interface to the filter. Filters can communicate changes in the list of event types they potentially accept. Parameters: callback  the object interested about changes in the Filter event type list. Returns: A unique ID attached to the callback interface.

void CosNotifyFilter::Filter::destroy (    )

Destroy the Filter.

void CosNotifyFilter::Filter::detach_callback (  in CallbackID    callback )  raises ( CallbackNotFound )

Remove a callback interface from the filter. Parameters: callback  The ID of the callback removed Exceptions: CallbackNotFound  if the callback id supplied is not found in the internal list of callbacks.

ConstraintInfoSeq CosNotifyFilter::Filter::get_all_constraints (    )

The all the constraints in the Filter.

CallbackIDSeq CosNotifyFilter::Filter::get_callbacks (    )

Return all the callback IDs in the Filter object.

ConstraintInfoSeq CosNotifyFilter::Filter::get_constraints (  in ConstraintIDSeq    id_list )  raises (ConstraintNotFound)

Obtain the one or more constraints given their IDs. Parameters: id_list  List of IDs queried Exceptions: ConstraintNotFound  if one or more of the ConstraintID supplied are not found.

boolean CosNotifyFilter::Filter::match (  in any    filterable_data )  raises (UnsupportedFilterableData)

Match a regular event against the constraints in the filter. Parameters: filterable_data  The Notification Service event to be tested against the constraints in this Filter Returns: TRUE if at least one constraint evaluates to TRUE for the event. Exceptions: UnsupportedFilterableData  if the event contents do not match the filtering expression, for example, if the expression for a filterable field expects a string, but the actual value is a number.

boolean CosNotifyFilter::Filter::match_structured (  in CosNotification::StructuredEvent    filterable_data )  raises (UnsupportedFilterableData)

Match a structured event against the constraints in the filter. Parameters: filterable_data  The Notification Service event to be tested against the constraints in this Filter Returns: TRUE if at least one constraint expression evaluates to TRUE for the event. Exceptions: UnsupportedFilterableData  if the event contents do not match the filtering expression, for example, if the expression for a filterable field expects a string, but the actual value is a number.

boolean CosNotifyFilter::Filter::match_typed (  in CosNotification::PropertySeq    filterable_data )  raises (UnsupportedFilterableData)

Match a typed event against the constraints in the filter. Parameters: filterable_data  The sequence of properties that make the filterable portion of the Typed event. Returns: TRUE if at least one constraint expression evaluates to TRUE for the event. Exceptions: UnsupportedFilterableData  if the event contents do not match the filtering expression, for example, if the expression for a filterable field expects a string, but the actual value is a number.

void CosNotifyFilter::Filter::modify_constraints (  in ConstraintIDSeq    del_list, in ConstraintInfoSeq    modify_list )  raises (InvalidConstraint, ConstraintNotFound)

Modify and/or remove multiple constraints in the Filter. The operation can raise InvalidConstraint if one or more constraints contain invalid expressions in the constraint grammar. Parameters: del_list  List of constraint IDs to be removed modify_list  List of constrained modified Exceptions: ConstraintNotFound  If one or more of the ConstraintID supplied are not found.

void CosNotifyFilter::Filter::remove_all_constraints (    )

Remove all the constraints from the Filter.

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Member Data Documentation

readonly attribute string CosNotifyFilter::Filter::constraint_grammar

Constraint grammar used in this filter. All filtering expressions in the filter should use this grammar.

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

• CosNotifyFilter.idl

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