TypeInfoProvider
abstract class TypeInfoProvider
kotlin.Any | |
↳ | 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 ValidatorHandler#getTypeInfoProvider()
method.
Summary
Protected constructors | |
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Constructor for the derived class. |
Public methods | |
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abstract TypeInfo! |
getAttributeTypeInfo(index: Int) Returns the immutable |
abstract TypeInfo! |
Returns the immutable |
abstract Boolean |
isIdAttribute(index: Int) Returns true if the specified attribute is determined to be ID. |
abstract Boolean |
isSpecified(index: Int) Returns false if the attribute was added by the validator. |
Protected constructors
TypeInfoProvider
protected TypeInfoProvider()
Constructor for the derived class.
The constructor does nothing.
Public methods
getAttributeTypeInfo
abstract fun getAttributeTypeInfo(index: Int): TypeInfo!
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 org.xml.sax.ContentHandler
that the application sets to the ValidatorHandler
.
Parameters | |
---|---|
index |
Int: The index of the attribute. The same index for the org.xml.sax.Attributes object passed to the startElement callback. |
Return | |
---|---|
TypeInfo! |
An immutable TypeInfo object that represents the type of the specified attribute. 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. |
Exceptions | |
---|---|
java.lang.IndexOutOfBoundsException |
If the index is invalid. |
java.lang.IllegalStateException |
If this method is called from other org.xml.sax.ContentHandler methods. |
getElementTypeInfo
abstract fun getElementTypeInfo(): TypeInfo!
Returns the immutable TypeInfo
object for the current element.
The method may only be called by the startElement and endElement event of the org.xml.sax.ContentHandler
that the application sets to the ValidatorHandler
.
Return | |
---|---|
TypeInfo! |
An immutable 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.) |
Exceptions | |
---|---|
java.lang.IllegalStateException |
If this method is called from other org.xml.sax.ContentHandler methods. |
isIdAttribute
abstract fun isIdAttribute(index: Int): Boolean
Returns true if the specified attribute is determined to be ID.
Exactly 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 javax.xml.parsers.DocumentBuilder
uses this information to properly implement org.w3c.dom.Attr#isId()
.
The method may only be called by the startElement event of the org.xml.sax.ContentHandler
that the application sets to the ValidatorHandler
.
Parameters | |
---|---|
index |
Int: The index of the attribute. The same index for the org.xml.sax.Attributes object passed to the startElement callback. |
Return | |
---|---|
Boolean |
true if the type of the specified attribute is ID. |
Exceptions | |
---|---|
java.lang.IndexOutOfBoundsException |
If the index is invalid. |
java.lang.IllegalStateException |
If this method is called from other org.xml.sax.ContentHandler methods. |
isSpecified
abstract fun isSpecified(index: Int): Boolean
Returns false if the attribute was added by the validator.
This method provides information necessary for a javax.xml.parsers.DocumentBuilder
to determine what the DOM tree should return from the org.w3c.dom.Attr#getSpecified()
method.
The method may only be called by the startElement event of the org.xml.sax.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.
Parameters | |
---|---|
index |
Int: The index of the attribute. The same index for the org.xml.sax.Attributes object passed to the startElement callback. |
Return | |
---|---|
Boolean |
true if the attribute was present before the validator processes input. false if the attribute was added by the validator. |
Exceptions | |
---|---|
java.lang.IndexOutOfBoundsException |
If the index is invalid. |
java.lang.IllegalStateException |
If this method is called from other org.xml.sax.ContentHandler methods. |