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See:
Description
Interface Summary | |
---|---|
IBatchValidator |
An IValidator that supports batch-mode validation of
EObject s.
|
IConstraintDescriptor | A constraint descriptor provides information about a constraint's role and status in the system. |
ILiveValidator |
An IValidator that supports live-mode validation of
Notification s.
|
IModelConstraintProvider |
Interface implemented by objects that can provide
IModelConstraint s to the
system for validation of EMF objects. |
ITraversalStrategy | A strategy for traversal of one or more model sub-trees in batch validation. |
IValidationListener | Interface implemented by clients who wish to receive notification whenever validation operations are performed. |
IValidator | A validator validates model elements on behalf of the validation service's clients. |
Class Summary | |
---|---|
AbstractConstraintDescriptor |
A partial implementation of the IConstraintDescriptor interface
that is useful for subclassing.
|
AbstractConstraintProvider |
For situations in which the
XmlConstraintProvider class
does not suffice (i.e., where a plug-in provides constraints dynamically,
rather than statically registered in XML), this is a useful class to extend
as it provides a partial implementation of the
IModelConstraintProvider interface. |
AbstractTraversalStrategy | An iterator-based partial implementation of the ITraversalStrategy
interface. |
ConstraintFactory | A constraint factory creates constraint implementations from descriptors. |
ConstraintRegistry |
A centralized registry of descriptors for
the constraints that are available in the validation system. |
ITraversalStrategy.Flat | An implementation of the ITraversalStrategy interface that is
non-recursive: it simply iterates the root elements. |
ITraversalStrategy.Recursive | An implementation of the ITraversalStrategy interface that is
recursive: it iterates over the content trees of the roots, according
to the basic EMF EObject.eAllContents() tree-iterator. |
ModelValidationService | The Model Validation Service makes constraints and validators available to the client application. |
ValidationEvent | Event notifying IValidationListener s that a validation operation
has occurred. |
Exception Summary | |
---|---|
ConstraintExistsException | Constraint thrown to indicate that a constraint descriptor cannot be
registered because
a constraint is already registered under the same ID. |
The semi-public (internal-public) package defining the API for invocation of the validation engine and for the implementation of constraint providers.
This package defines the API for the client and provider sides of the "validation service." The main types involved are:
ModelValidationService
:
a singleton that provides clients of
the validation engine with access to validators implementing batch or
live mode validationIValidator
:
the common interface of objects that perform
the validation operation; its sub-interface define the contract for
the batch and live modes of validation. The validators are the objects
that clients of the validation service invoke to test their modelsIModelConstraintProvider
:
the interface implemented by any
class that provides constraints to the system. Constraints defined
in plug-in manifests are provided by the pre-defined
XmlConstraintProvider
.
Dynamic constraint providers typically implement this interface by
extending the
AbstractConstraintProvider
class.Some supporting types provide additional functionality and/or controls on the validation engine:
IConstraintDescriptor
:
provides the validation engine with
various meta-data about a constraint, to help it decide:
ConstraintRegistry
:
keeps track of all constraint descriptors
in the system, ensuring that they are unique. It is available to
constraint providers and clients of the validation engine to look up
constraint descriptors by the constraints' IDs, for "introspection" of
the constraints in the systemITraversalStrategy
:
supports the special traversal algorithms
required by some EMF meta-models where the default containment-tree
iteration is not sufficient or optimal. Used by
IBatchValidator
s
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Copyright 2002, 2006 IBM Corporation and others. All Rights Reserved. |
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