Module dev.metaschema.core

Package dev.metaschema.core.model

Class DefinitionCollectingModelWalker

java.lang.Object

dev.metaschema.core.model.ModelWalker<Void>

dev.metaschema.core.model.DefinitionCollectingModelWalker

Direct Known Subclasses:

UsedDefinitionModelWalker

public abstract class DefinitionCollectingModelWalker
extends ModelWalker<Void>

Supports walking a portion of a metaschema model collecting a set of definitions that match the provided filter. For a definition to be collected, the filter must return true.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DefinitionCollectingModelWalker(Function<IDefinition,Boolean> filter)	Construct a new walker using the provided filter.

Method Summary

Modifier and Type	Method	Description
protected Void	getDefaultData()	Generate default state information.
Collection<? extends IDefinition>	getDefinitions()	Return the collection of definitions matching the configured filter.
protected Function<IDefinition,Boolean>	getFilter()	Retrieves the filter used for matching.
protected boolean	visit(IAssemblyDefinition def, Void data)	Called when the provided definition is walked.
protected boolean	visit(IFieldDefinition def, Void data)	Called when the provided definition is walked.
protected void	visit(IFlagDefinition def, Void data)	Called when the provided definition is walked.

Methods inherited from class dev.metaschema.core.model.ModelWalker

visit, visit, visit, visit, visit, visitDefinition, walk, walk, walk, walk, walk, walk, walk, walk, walk, walk, walk, walkDefinition, walkDefinition, walkFlagInstances, walkModelInstance, walkModelInstances

Methods inherited from class java.lang.Object

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

Constructor Details

DefinitionCollectingModelWalker

protected DefinitionCollectingModelWalker(Function<IDefinition,Boolean> filter)

Construct a new walker using the provided filter.

Parameters:

filter - the filter to match definitions against

Method Details

getDefaultData

protected Void getDefaultData()

Description copied from class: ModelWalker

Generate default state information.

Specified by:

getDefaultData in class ModelWalker<Void>

Returns:

the state information

getFilter

protected Function<IDefinition,Boolean> getFilter()

Retrieves the filter used for matching.

Returns:

the filter

getDefinitions

@NonNull
public Collection<? extends IDefinition> getDefinitions()

Return the collection of definitions matching the configured filter.

Returns:

the collection of definitions

visit

protected void visit(IFlagDefinition def,
 Void data)

Description copied from class: ModelWalker

Called when the provided definition is walked. This can be overridden by child classes to enable processing of the visited definition.

Specified by:

visit in class ModelWalker<Void>

Parameters:

def - the definition that is visited

data - additional state information to operate on

visit

protected boolean visit(IFieldDefinition def,
 Void data)

Description copied from class: ModelWalker

Called when the provided definition is walked. This can be overridden by child classes to enable processing of the visited definition.

Overrides:

visit in class ModelWalker<Void>

Parameters:

def - the definition that is visited

data - additional state information to operate on

Returns:

true if child instances are to be walked, or false otherwise

visit

protected boolean visit(IAssemblyDefinition def,
 Void data)

Description copied from class: ModelWalker

Called when the provided definition is walked. This can be overridden by child classes to enable processing of the visited definition.

Overrides:

visit in class ModelWalker<Void>

Parameters:

def - the definition that is visited

data - additional state information to operate on

Returns:

true if child instances are to be walked, or false otherwise