org.apache.xerces.impl.dv

Class SchemaDVFactory

java.lang.Object

org.apache.xerces.impl.dv.SchemaDVFactory

Direct Known Subclasses:

BaseDVFactory, BaseSchemaDVFactory

public abstract class SchemaDVFactory
extends Object

Defines a factory API that enables applications to

1. to get the instance of specified SchemaDVFactory implementation

2. to create/return built-in schema simple types

3. to create user defined simple types.

Implementations of this abstract class can be used to get built-in simple types and create user-defined simle types.

The implementation should store the built-in datatypes in static data, so that they can be shared by multiple parser instance, and multiple threads.

Version:

$Id$

Author:

Sandy Gao, IBM

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SchemaDVFactory()

Method Summary

Modifier and Type	Method and Description
abstract XSSimpleType	createTypeList(String name, String targetNamespace, short finalSet, XSSimpleType itemType, XSObjectList annotations) Create a new simple type which is derived by list from another simple type.
abstract XSSimpleType	createTypeRestriction(String name, String targetNamespace, short finalSet, XSSimpleType base, XSObjectList annotations) Create a new simple type which is derived by restriction from another simple type.
abstract XSSimpleType	createTypeUnion(String name, String targetNamespace, short finalSet, XSSimpleType[] memberTypes, XSObjectList annotations) Create a new simple type which is derived by union from a list of other simple types.
abstract XSSimpleType	getBuiltInType(String name) Get a built-in simple type of the given name REVISIT: its still not decided within the Schema WG how to define the ur-types and if all simple types should be derived from a complex type, so as of now we ignore the fact that anySimpleType is derived from anyType, and pass 'null' as the base of anySimpleType.
abstract SymbolHash	getBuiltInTypes() get all built-in simple types, which are stored in a SymbolHash keyed by the name
static SchemaDVFactory	getInstance() Get a default instance of SchemaDVFactory implementation.
static SchemaDVFactory	getInstance(String factoryClass) Get an instance of SchemaDVFactory implementation.

Methods inherited from class java.lang.Object

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

Constructor Detail

SchemaDVFactory

protected SchemaDVFactory()

Method Detail

getInstance

public static final SchemaDVFactory getInstance()
                                         throws DVFactoryException

Get a default instance of SchemaDVFactory implementation.

Returns:

an instance of SchemaDVFactory implementation

Throws:

DVFactoryException - cannot create an instance of the specified class name or the default class name

getInstance

public static final SchemaDVFactory getInstance(String factoryClass)
                                         throws DVFactoryException

Get an instance of SchemaDVFactory implementation.

Parameters:

factoryClass - name of the schema factory implementation to instantiate.

Returns:

an instance of SchemaDVFactory implementation

Throws:

DVFactoryException - cannot create an instance of the specified class name or the default class name

getBuiltInType

public abstract XSSimpleType getBuiltInType(String name)

Get a built-in simple type of the given name REVISIT: its still not decided within the Schema WG how to define the ur-types and if all simple types should be derived from a complex type, so as of now we ignore the fact that anySimpleType is derived from anyType, and pass 'null' as the base of anySimpleType. It needs to be changed as per the decision taken.

Parameters:

name - the name of the datatype

Returns:

the datatype validator of the given name

getBuiltInTypes

public abstract SymbolHash getBuiltInTypes()

get all built-in simple types, which are stored in a SymbolHash keyed by the name

Returns:

a SymbolHash which contains all built-in simple types

createTypeRestriction

public abstract XSSimpleType createTypeRestriction(String name,
                                                   String targetNamespace,
                                                   short finalSet,
                                                   XSSimpleType base,
                                                   XSObjectList annotations)

Create a new simple type which is derived by restriction from another simple type.

Parameters:

name - name of the new type, could be null

targetNamespace - target namespace of the new type, could be null

finalSet - value of "final"

base - base type of the new type

annotations - set of annotations

Returns:

the newly created simple type

createTypeList

public abstract XSSimpleType createTypeList(String name,
                                            String targetNamespace,
                                            short finalSet,
                                            XSSimpleType itemType,
                                            XSObjectList annotations)

Create a new simple type which is derived by list from another simple type.

Parameters:

name - name of the new type, could be null

targetNamespace - target namespace of the new type, could be null

finalSet - value of "final"

itemType - item type of the list type

annotations - set of annotations

Returns:

the newly created simple type

createTypeUnion

public abstract XSSimpleType createTypeUnion(String name,
                                             String targetNamespace,
                                             short finalSet,
                                             XSSimpleType[] memberTypes,
                                             XSObjectList annotations)

Create a new simple type which is derived by union from a list of other simple types.

Parameters:

name - name of the new type, could be null

targetNamespace - target namespace of the new type, could be null

finalSet - value of "final"

memberTypes - member types of the union type

annotations - set of annotations

Returns:

the newly created simple type