Class Schema
- java.lang.Object
-
- javax.xml.validation.Schema
public abstract class Schema extends Object
Immutable in-memory representation of grammar.
This object represents a set of constraints that can be checked/ enforced against an XML document.
A Schema
object is thread safe and applications are encouraged to share it across many parsers in many threads.
A Schema
object is immutable in the sense that it shouldn't change the set of constraints once it is created. In other words, if an application validates the same document twice against the same Schema
, it must always produce the same result.
A Schema
object is usually created from SchemaFactory
.
Two kinds of validators can be created from a Schema
object. One is Validator
, which provides highly-level validation operations that cover typical use cases. The other is ValidatorHandler
, which works on top of SAX for better modularity.
This specification does not refine the Object.equals(java.lang.Object)
method. In other words, if you parse the same schema twice, you may still get !schemaA.equals(schemaB)
.
- Since:
- 1.5
- See Also:
- XML Schema Part 1: Structures, Extensible Markup Language (XML) 1.1, Extensible Markup Language (XML) 1.0 (Second Edition)
Constructor Summary
Modifier | Constructor | Description |
---|---|---|
protected | Schema() | Constructor for the derived class. |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
abstract Validator | newValidator() | |
abstract ValidatorHandler | newValidatorHandler() | Creates a new |
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Constructor Detail
Schema
protected Schema()
Constructor for the derived class.
The constructor does nothing.
Method Detail
newValidator
public abstract Validator newValidator()
Creates a new Validator
for this Schema
.
A validator enforces/checks the set of constraints this object represents.
Implementors should assure that the properties set on the SchemaFactory
that created this Schema
are also set on the Validator
constructed.
- Returns:
- Always return a non-null valid object.
newValidatorHandler
public abstract ValidatorHandler newValidatorHandler()
Creates a new ValidatorHandler
for this Schema
.
Implementors should assure that the properties set on the SchemaFactory
that created this Schema
are also set on the ValidatorHandler
constructed.
- Returns:
- Always return a non-null valid object.