* #### reset
public abstract void reset()
Reset this `Validator` to its original configuration.
`Validator` is reset to the same state as when it was created with[Schema.newValidator()](../../../javax/xml/validation/Schema.html#newValidator--).`reset()` is designed to allow the reuse of existing `Validator`s thus saving resources associated with the creation of new `Validator`s.
The reset `Validator` is not guaranteed to have the same [LSResourceResolver](../../../org/w3c/dom/ls/LSResourceResolver.html "interface in org.w3c.dom.ls") or [ErrorHandler](../../../org/xml/sax/ErrorHandler.html "interface in org.xml.sax") `Object`s, e.g. [Object.equals(Object obj)](../../../java/lang/Object.html#equals-java.lang.Object-). It is guaranteed to have a functionally equal`LSResourceResolver` and `ErrorHandler`.
* #### validate
public void validate([Source](../../../javax/xml/transform/Source.html "interface in javax.xml.transform") source)
throws [SAXException](../../../org/xml/sax/SAXException.html "class in org.xml.sax"),
[IOException](../../../java/io/IOException.html "class in java.io")
Parameters:
`source` \- XML to be validated. Must be an XML document or XML element and must not be null. For backwards compatibility, the results of attempting to validate anything other than a document or element are implementation-dependent. Implementations must either recognize and process the input or throw an IllegalArgumentException.
Throws:
`[IllegalArgumentException](../../../java/lang/IllegalArgumentException.html "class in java.lang")` \- If the `Source` is an XML artifact that the implementation cannot validate (for example, a processing instruction).
`[SAXException](../../../org/xml/sax/SAXException.html "class in org.xml.sax")` \- If the [ErrorHandler](../../../org/xml/sax/ErrorHandler.html "interface in org.xml.sax") throws a [SAXException](../../../org/xml/sax/SAXException.html "class in org.xml.sax") or if a fatal error is found and the [ErrorHandler](../../../org/xml/sax/ErrorHandler.html "interface in org.xml.sax") returns normally.
`[IOException](../../../java/io/IOException.html "class in java.io")` \- If the validator is processing a[SAXSource](../../../javax/xml/transform/sax/SAXSource.html "class in javax.xml.transform.sax") and the underlying [XMLReader](../../../org/xml/sax/XMLReader.html "interface in org.xml.sax") throws an[IOException](../../../java/io/IOException.html "class in java.io").
`[NullPointerException](../../../java/lang/NullPointerException.html "class in java.lang")` \- If `source` is`null`.
See Also:
[validate(Source source, Result result)](../../../javax/xml/validation/Validator.html#validate-javax.xml.transform.Source-javax.xml.transform.Result-)
* #### validate
public abstract void validate([Source](../../../javax/xml/transform/Source.html "interface in javax.xml.transform") source,
[Result](../../../javax/xml/transform/Result.html "interface in javax.xml.transform") result)
throws [SAXException](../../../org/xml/sax/SAXException.html "class in org.xml.sax"),
[IOException](../../../java/io/IOException.html "class in java.io")
Validates the specified input and send the augmented validation result to the specified output.
This method places the following restrictions on the types of the [Source](../../../javax/xml/transform/Source.html "interface in javax.xml.transform")/[Result](../../../javax/xml/transform/Result.html "interface in javax.xml.transform") accepted.
__Source / Result Accepted__
| [StreamSource](../../../javax/xml/transform/stream/StreamSource.html "class in javax.xml.transform.stream") | [SAXSource](../../../javax/xml/transform/sax/SAXSource.html "class in javax.xml.transform.sax") | [DOMSource](../../../javax/xml/transform/dom/DOMSource.html "class in javax.xml.transform.dom") | [StAXSource](../../../javax/xml/transform/stax/StAXSource.html "class in javax.xml.transform.stax") | |
| ----------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------- | ------------------------ |
| null | OK | OK | OK | OK |
| [StreamResult](../../../javax/xml/transform/stream/StreamResult.html "class in javax.xml.transform.stream") | OK | IllegalArgumentException | IllegalArgumentException | IllegalArgumentException |
| [SAXResult](../../../javax/xml/transform/sax/SAXResult.html "class in javax.xml.transform.sax") | IllegalArgumentException | OK | IllegalArgumentException | IllegalArgumentException |
| [DOMResult](../../../javax/xml/transform/dom/DOMResult.html "class in javax.xml.transform.dom") | IllegalArgumentException | IllegalArgumentException | OK | IllegalArgumentException |
| [StAXResult](../../../javax/xml/transform/stax/StAXResult.html "class in javax.xml.transform.stax") | IllegalArgumentException | IllegalArgumentException | IllegalArgumentException | OK |
To validate one `Source` into another kind of`Result`, use the identity transformer (see[TransformerFactory.newTransformer()](../../../javax/xml/transform/TransformerFactory.html#newTransformer--)).
Errors found during the validation is sent to the specified[ErrorHandler](../../../org/xml/sax/ErrorHandler.html "interface in org.xml.sax").
If a document is valid, or if a document contains some errors but none of them were fatal and the `ErrorHandler` didn't throw any exception, then the method returns normally.
Parameters:
`source` \- XML to be validated. Must be an XML document or XML element and must not be null. For backwards compatibility, the results of attempting to validate anything other than a document or element are implementation-dependent. Implementations must either recognize and process the input or throw an IllegalArgumentException.
`result` \- The `Result` object that receives (possibly augmented) XML. This parameter can be null if the caller is not interested in it. Note that when a `DOMResult` is used, a validator might just pass the same DOM node from`DOMSource` to `DOMResult` (in which case `source.getNode()==result.getNode()`), it might copy the entire DOM tree, or it might alter the node given by the source.
Throws:
`[IllegalArgumentException](../../../java/lang/IllegalArgumentException.html "class in java.lang")` \- If the `Result` type doesn't match the`Source` type of if the `Source` is an XML artifact that the implementation cannot validate (for example, a processing instruction).
`[SAXException](../../../org/xml/sax/SAXException.html "class in org.xml.sax")` \- If the `ErrorHandler` throws a`SAXException` or if a fatal error is found and the `ErrorHandler` returns normally.
`[IOException](../../../java/io/IOException.html "class in java.io")` \- If the validator is processing a`SAXSource` and the underlying [XMLReader](../../../org/xml/sax/XMLReader.html "interface in org.xml.sax") throws an`IOException`.
`[NullPointerException](../../../java/lang/NullPointerException.html "class in java.lang")` \- If the `source` parameter is `null`.
See Also:
[validate(Source source)](../../../javax/xml/validation/Validator.html#validate-javax.xml.transform.Source-)
* #### setErrorHandler
public abstract void setErrorHandler([ErrorHandler](../../../org/xml/sax/ErrorHandler.html "interface in org.xml.sax") errorHandler)
Parameters:
`errorHandler` \- A new error handler to be set. This parameter can be null.
* #### getErrorHandler
public abstract [ErrorHandler](../../../org/xml/sax/ErrorHandler.html "interface in org.xml.sax") getErrorHandler()
Returns:
This method returns the object that was last set through the [setErrorHandler(ErrorHandler)](../../../javax/xml/validation/Validator.html#setErrorHandler-org.xml.sax.ErrorHandler-) method, or null if that method has never been called since this [Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") has created.
See Also:
[setErrorHandler(ErrorHandler)](../../../javax/xml/validation/Validator.html#setErrorHandler-org.xml.sax.ErrorHandler-)
* #### setResourceResolver
public abstract void setResourceResolver([LSResourceResolver](../../../org/w3c/dom/ls/LSResourceResolver.html "interface in org.w3c.dom.ls") resourceResolver)
Sets the [LSResourceResolver](../../../org/w3c/dom/ls/LSResourceResolver.html "interface in org.w3c.dom.ls") to customize resource resolution while in a validation episode.
[Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") uses a [LSResourceResolver](../../../org/w3c/dom/ls/LSResourceResolver.html "interface in org.w3c.dom.ls") when it needs to locate external resources while a validation, although exactly what constitutes "locating external resources" is up to each schema language.
When the [LSResourceResolver](../../../org/w3c/dom/ls/LSResourceResolver.html "interface in org.w3c.dom.ls") is null, the implementation will behave as if the following [LSResourceResolver](../../../org/w3c/dom/ls/LSResourceResolver.html "interface in org.w3c.dom.ls") is set:
class DumbLSResourceResolver implements [LSResourceResolver](../../../org/w3c/dom/ls/LSResourceResolver.html "interface in org.w3c.dom.ls") {
public [LSInput](../../../org/w3c/dom/ls/LSInput.html "interface in org.w3c.dom.ls") resolveResource(
String publicId, String systemId, String baseURI) {
return null; // always return null
}
}
If a [LSResourceResolver](../../../org/w3c/dom/ls/LSResourceResolver.html "interface in org.w3c.dom.ls") throws a [RuntimeException](../../../java/lang/RuntimeException.html "class in java.lang") (or instances of its derived classes), then the [Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") will abort the parsing and the caller of the `validate` method will receive the same [RuntimeException](../../../java/lang/RuntimeException.html "class in java.lang").
When a new [Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") object is created, initially this field is set to null.
Parameters:
`resourceResolver` \- A new resource resolver to be set. This parameter can be null.
* #### getResourceResolver
public abstract [LSResourceResolver](../../../org/w3c/dom/ls/LSResourceResolver.html "interface in org.w3c.dom.ls") getResourceResolver()
Returns:
This method returns the object that was last set through the [setResourceResolver(LSResourceResolver)](../../../javax/xml/validation/Validator.html#setResourceResolver-org.w3c.dom.ls.LSResourceResolver-) method, or null if that method has never been called since this [Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") has created.
See Also:
[setErrorHandler(ErrorHandler)](../../../javax/xml/validation/Validator.html#setErrorHandler-org.xml.sax.ErrorHandler-)
* #### getFeature
public boolean getFeature([String](../../../java/lang/String.html "class in java.lang") name)
throws [SAXNotRecognizedException](../../../org/xml/sax/SAXNotRecognizedException.html "class in org.xml.sax"),
[SAXNotSupportedException](../../../org/xml/sax/SAXNotSupportedException.html "class in org.xml.sax")
Look up the value of a feature flag.
The feature name is any fully-qualified URI. It is possible for a [Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") to recognize a feature name but temporarily be unable to return its value. Some feature values may be available only in specific contexts, such as before, during, or after a validation.
Implementors are free (and encouraged) to invent their own features, using names built on their own URIs.
Parameters:
`name` \- The feature name, which is a non-null fully-qualified URI.
Returns:
The current value of the feature (true or false).
Throws:
`[SAXNotRecognizedException](../../../org/xml/sax/SAXNotRecognizedException.html "class in org.xml.sax")` \- If the feature value can't be assigned or retrieved.
`[SAXNotSupportedException](../../../org/xml/sax/SAXNotSupportedException.html "class in org.xml.sax")` \- When the[Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") recognizes the feature name but cannot determine its value at this time.
`[NullPointerException](../../../java/lang/NullPointerException.html "class in java.lang")` \- When the name parameter is null.
See Also:
[setFeature(String, boolean)](../../../javax/xml/validation/Validator.html#setFeature-java.lang.String-boolean-)
* #### setFeature
public void setFeature([String](../../../java/lang/String.html "class in java.lang") name,
boolean value)
throws [SAXNotRecognizedException](../../../org/xml/sax/SAXNotRecognizedException.html "class in org.xml.sax"),
[SAXNotSupportedException](../../../org/xml/sax/SAXNotSupportedException.html "class in org.xml.sax")
Set the value of a feature flag.
Feature can be used to control the way a [Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") parses schemas, although [Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation")s are not required to recognize any specific feature names.
The feature name is any fully-qualified URI. It is possible for a [Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") to expose a feature value but to be unable to change the current value. Some feature values may be immutable or mutable only in specific contexts, such as before, during, or after a validation.
Parameters:
`name` \- The feature name, which is a non-null fully-qualified URI.
`value` \- The requested value of the feature (true or false).
Throws:
`[SAXNotRecognizedException](../../../org/xml/sax/SAXNotRecognizedException.html "class in org.xml.sax")` \- If the feature value can't be assigned or retrieved.
`[SAXNotSupportedException](../../../org/xml/sax/SAXNotSupportedException.html "class in org.xml.sax")` \- When the[Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") recognizes the feature name but cannot set the requested value.
`[NullPointerException](../../../java/lang/NullPointerException.html "class in java.lang")` \- When the name parameter is null.
See Also:
[getFeature(String)](../../../javax/xml/validation/Validator.html#getFeature-java.lang.String-)
* #### setProperty
public void setProperty([String](../../../java/lang/String.html "class in java.lang") name,
[Object](../../../java/lang/Object.html "class in java.lang") object)
throws [SAXNotRecognizedException](../../../org/xml/sax/SAXNotRecognizedException.html "class in org.xml.sax"),
[SAXNotSupportedException](../../../org/xml/sax/SAXNotSupportedException.html "class in org.xml.sax")
Set the value of a property.
The property name is any fully-qualified URI. It is possible for a [Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") to recognize a property name but to be unable to change the current value. Some property values may be immutable or mutable only in specific contexts, such as before, during, or after a validation.
All implementations that implement JAXP 1.5 or newer are required to support the [XMLConstants.ACCESS\_EXTERNAL\_DTD](../../../javax/xml/XMLConstants.html#ACCESS%5FEXTERNAL%5FDTD) and[XMLConstants.ACCESS\_EXTERNAL\_SCHEMA](../../../javax/xml/XMLConstants.html#ACCESS%5FEXTERNAL%5FSCHEMA) properties.
* Access to external DTDs in source or Schema file is restricted to the protocols specified by the [XMLConstants.ACCESS\_EXTERNAL\_DTD](../../../javax/xml/XMLConstants.html#ACCESS%5FEXTERNAL%5FDTD) property. If access is denied during validation due to the restriction of this property, [SAXException](../../../org/xml/sax/SAXException.html "class in org.xml.sax") will be thrown by the[validate(Source)](../../../javax/xml/validation/Validator.html#validate-javax.xml.transform.Source-) method.
Access to external reference set by the schemaLocation attribute is restricted to the protocols specified by the[XMLConstants.ACCESS\_EXTERNAL\_SCHEMA](../../../javax/xml/XMLConstants.html#ACCESS%5FEXTERNAL%5FSCHEMA) property. If access is denied during validation due to the restriction of this property,[SAXException](../../../org/xml/sax/SAXException.html "class in org.xml.sax") will be thrown by the[validate(Source)](../../../javax/xml/validation/Validator.html#validate-javax.xml.transform.Source-) method.
Parameters:
`name` \- The property name, which is a non-null fully-qualified URI.
`object` \- The requested value for the property.
Throws:
`[SAXNotRecognizedException](../../../org/xml/sax/SAXNotRecognizedException.html "class in org.xml.sax")` \- If the property value can't be assigned or retrieved.
`[SAXNotSupportedException](../../../org/xml/sax/SAXNotSupportedException.html "class in org.xml.sax")` \- When the[Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") recognizes the property name but cannot set the requested value.
`[NullPointerException](../../../java/lang/NullPointerException.html "class in java.lang")` \- When the name parameter is null.
* #### getProperty
public [Object](../../../java/lang/Object.html "class in java.lang") getProperty([String](../../../java/lang/String.html "class in java.lang") name)
throws [SAXNotRecognizedException](../../../org/xml/sax/SAXNotRecognizedException.html "class in org.xml.sax"),
[SAXNotSupportedException](../../../org/xml/sax/SAXNotSupportedException.html "class in org.xml.sax")
Look up the value of a property.
The property name is any fully-qualified URI. It is possible for a [Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation") to recognize a property name but temporarily be unable to return its value. Some property values may be available only in specific contexts, such as before, during, or after a validation.
[Validator](../../../javax/xml/validation/Validator.html "class in javax.xml.validation")s are not required to recognize any specific property names.
Implementors are free (and encouraged) to invent their own properties, using names built on their own URIs.
Parameters:
`name` \- The property name, which is a non-null fully-qualified URI.
Returns:
The current value of the property.
Throws:
`[SAXNotRecognizedException](../../../org/xml/sax/SAXNotRecognizedException.html "class in org.xml.sax")` \- If the property value can't be assigned or retrieved.
`[SAXNotSupportedException](../../../org/xml/sax/SAXNotSupportedException.html "class in org.xml.sax")` \- When the XMLReader recognizes the property name but cannot determine its value at this time.
`[NullPointerException](../../../java/lang/NullPointerException.html "class in java.lang")` \- When the name parameter is null.
See Also:
[setProperty(String, Object)](../../../javax/xml/validation/Validator.html#setProperty-java.lang.String-java.lang.Object-)