org.apache.xerces.validators.datatype
Class DatatypeValidatorFactoryImpl

java.lang.Object
  |
  +--org.apache.xerces.validators.datatype.DatatypeValidatorFactoryImpl
All Implemented Interfaces:
DatatypeValidatorFactory

public class DatatypeValidatorFactoryImpl
extends java.lang.Object
implements DatatypeValidatorFactory

This class implements a factory of datatype validators. Internally the DatatypeValidators are kept in three registries:
(i) DTDRegistry - stores DTD datatype validators SchemaRegistry - stores Schema datatype validators UserDefinedRegistry - stores Schema user defined datatypes.
The above registries will be initialized on demand (for XML document with a DTD, only DTDRegistry will be initialized).
Note: Between multiple parse() calls, only _user_defined_ registry will be reset. DTD registry and schema registry are initialized only once and are kept for the *life-time* of the parser .
This implementation uses a Hahtable as a registry table but future implementation should use a lighter object, maybe a Map class ( not use a derived Map class because of JDK 1.1.8 no supporting Map).

As the Parser parses an instance document it knows if validation needs to be checked. If no validation is necessary we should not instantiate a DatatypeValidatorFactoryImpl.

Version:
$Id: DatatypeValidatorFactoryImpl.java 317412 2001-08-01 12:46:57Z sandygao $
Author:
Elena Litani, Jeffrey Rodriguez, Mark Swinkles - List Validation refactoring

Constructor Summary
DatatypeValidatorFactoryImpl()
           
 
Method Summary
 DatatypeValidator createDatatypeValidator(java.lang.String typeName, DatatypeValidator base, java.util.Hashtable facets, boolean list)
           
 DatatypeValidator createDatatypeValidator(java.lang.String typeName, java.util.Vector validators)
           
 void expandRegistryToFullSchemaSet()
          Initializes fSchemaDatatypeRegistry with schema primitive and derived datatypes.
 DatatypeValidator getDatatypeValidator(java.lang.String type)
          Searches different datatype registries depending on validation mode (schema or dtd)
 void initializeDTDRegistry()
          Initializes fDTDRegistry with (9) DTD related datatypes .
 void resetRegistry()
          An optimization option that we should write in the future is to separate the static list of Datatype Validators from the dynamic part where anonymous, and user derived datatype are kept, then when we resetRegistry only the dynamic part of the registry should be cleared.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DatatypeValidatorFactoryImpl

public DatatypeValidatorFactoryImpl()
Method Detail

initializeDTDRegistry

public void initializeDTDRegistry()
Initializes fDTDRegistry with (9) DTD related datatypes .

expandRegistryToFullSchemaSet

public void expandRegistryToFullSchemaSet()
Initializes fSchemaDatatypeRegistry with schema primitive and derived datatypes. See W3C Schema Datatype REC. If DTD registry is not initialized yet, this method will initialize it as well.

resetRegistry

public void resetRegistry()
An optimization option that we should write in the future is to separate the static list of Datatype Validators from the dynamic part where anonymous, and user derived datatype are kept, then when we resetRegistry only the dynamic part of the registry should be cleared. So we don't end up clearing the static part of the table over and over every time that we do a parse cycle.

createDatatypeValidator

public DatatypeValidator createDatatypeValidator(java.lang.String typeName,
                                                 DatatypeValidator base,
                                                 java.util.Hashtable facets,
                                                 boolean list)
                                          throws InvalidDatatypeFacetException
Specified by:
createDatatypeValidator in interface DatatypeValidatorFactory

createDatatypeValidator

public DatatypeValidator createDatatypeValidator(java.lang.String typeName,
                                                 java.util.Vector validators)

getDatatypeValidator

public DatatypeValidator getDatatypeValidator(java.lang.String type)
Searches different datatype registries depending on validation mode (schema or dtd)
Parameters:
type -  
Returns:
 


Copyright 1999-2001 Apache XML Project. All Rights Reserved.