java.lang.Object | |
↳ | javax.xml.validation.TypeInfoProvider |
This class provides access to the type information determined
by ValidatorHandler
.
Some schema languages, such as W3C XML Schema, encourages a validator to report the "type" it assigns to each attribute/element. Those applications who wish to access this type information can invoke methods defined on this "interface" to access such type information.
Implementation of this "interface" can be obtained through the
getTypeInfoProvider()
method.
Protected Constructors | |||||||||||
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Constructor for the derived class.
|
Public Methods | |||||||||||
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Returns the immutable
TypeInfo object for the specified
attribute of the current element. | |||||||||||
Returns the immutable | |||||||||||
Returns
true if the specified attribute is determined
to be ID. | |||||||||||
Returns
false if the attribute was added by the validator. |
[Expand]
Inherited Methods | |||||||||||
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From class
java.lang.Object
|
Constructor for the derived class.
The constructor does nothing.
Returns the immutable TypeInfo
object for the specified
attribute of the current element.
The method may only be called by the startElement event of
the ContentHandler
that the application sets to the
ValidatorHandler
.
index | The index of the attribute. The same index for
the Attributes object passed to the
startElement callback. |
---|
IndexOutOfBoundsException | If the index is invalid. |
---|---|
IllegalStateException | If this method is called from other ContentHandler
methods. |
Returns the immutable TypeInfo
object for the current
element.
The method may only be called by the startElement event
or the endElement event
of the ContentHandler
that the application sets to
the ValidatorHandler
.
When W3C XML Schema validation is being performed, in the
case where an element has a union type, the TypeInfo
returned by a call to getElementTypeInfo()
from the
startElement
event will be the union type. The TypeInfo
returned by a call
from the endElement event will be the actual member type used
to validate the element.
TypeInfo
object that represents the
type of the current element.
Note that the caller can keep references to the obtained
TypeInfo
longer than the callback scope.
Otherwise, this method returns
null if the validator is unable to
determine the type of the current element for some reason
(for example, if the validator is recovering from
an earlier error.)
IllegalStateException | If this method is called from other ContentHandler
methods. |
---|
Returns true
if the specified attribute is determined
to be ID.
Exacly how an attribute is "determined to be ID" is up to the schema language. In case of W3C XML Schema, this means that the actual type of the attribute is the built-in ID type or its derived type.
A DocumentBuilder
uses this information
to properly implement isId()
.
The method may only be called by the startElement event of
the ContentHandler
that the application sets to the
ValidatorHandler
.
index | The index of the attribute. The same index for
the Attributes object passed to the
startElement callback. |
---|
IndexOutOfBoundsException | If the index is invalid. |
---|---|
IllegalStateException | If this method is called from other ContentHandler
methods. |
Returns false
if the attribute was added by the validator.
This method provides information necessary for
a DocumentBuilder
to determine what
the DOM tree should return from the getSpecified()
method.
The method may only be called by the startElement event of
the ContentHandler
that the application sets to the
ValidatorHandler
.
A general guideline for validators is to return true if the attribute was originally present in the pipeline, and false if it was added by the validator.
index | The index of the attribute. The same index for
the Attributes object passed to the
startElement callback. |
---|
true
if the attribute was present before the validator
processes input. false
if the attribute was added
by the validator.
IndexOutOfBoundsException | If the index is invalid. |
---|---|
IllegalStateException | If this method is called from other ContentHandler
methods. |