org.jibx.schema
Class UsageFinder

java.lang.Object
  org.jibx.schema.UsageFinder

public class UsageFinder
extends Object

Visitor to generate usage counts for schema components. This is somewhat messy, since there are so many different types of references in schema: 'ref' (attribute, attributeGroup, element, and group, to reference a global definition of same type), 'type' (attribute and element, reference a global type definition), 'base' (extension and restriction), 'itemType' (list), 'memberTypes' (union), 'substitutionGroup' (element), and 'refer' (unique). References can be recursively expanded by matching the reference set against the set of components processed, and processing any new references until the closure is obtained.

Author:

Dennis M. Sosnoski

Constructor Summary

UsageFinder()
Constructor.

Method Summary

void	addReferenceClosure(AnnotatedBase comp) Add usage counts for the reference closure of a definition.
void	addReferenceClosure(List list) Add usage counts for the reference closure of a supplied list of components.
void	countSchemaTree(SchemaElement schema) Add usage counts for a schema tree.
Set	getNonSingletonSet() Get the set of definitions referenced as optional or repeating.
ReferenceCountMap	getUsageMap() Get map of reference counts per component.
void	reset() Clear the accumulated usage counts.
void	setNameRegister(NameRegister reg) Set the register to be used for resolving name references.

Methods inherited from class java.lang.Object

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

Constructor Detail

UsageFinder

public UsageFinder()

Constructor.

Method Detail

getUsageMap

public ReferenceCountMap getUsageMap()

Get map of reference counts per component.

Returns:

count map

getNonSingletonSet

public Set getNonSingletonSet()

Get the set of definitions referenced as optional or repeating.

Returns:

set

countSchemaTree

public void countSchemaTree(SchemaElement schema)

Add usage counts for a schema tree. This counts all references from the supplied schema, including references in other schemas referenced by the schema.

Parameters:

schema -

addReferenceClosure

public void addReferenceClosure(AnnotatedBase comp)

Add usage counts for the reference closure of a definition.

Parameters:

comp - definition to be processed

addReferenceClosure

public void addReferenceClosure(List list)

Add usage counts for the reference closure of a supplied list of components.

Parameters:

list - starting schema components

setNameRegister

public void setNameRegister(NameRegister reg)

Set the register to be used for resolving name references. This is not needed if counting references from a schema tree using countSchemaTree(SchemaElement), which always sets the register associated with the supplied schema.

Parameters:

reg -

reset

public void reset()

Clear the accumulated usage counts.