Interface Verifier
-
- All Known Implementing Classes:
VerifierImpl
public interface Verifier
An instance of this interface can validates documents.An instance of this interface can be obtained through the
VerifierFactory.newVerifier(java.lang.String)
method orSchema.newVerifier()
method. Once it is created, an application can use one instance to validate multiple documents.This interface is not thread-safe and not reentrant. That is, only one thread can use it at any given time, and you can only validate one document at any given time.
- Since:
- Feb. 23, 2001
-
-
Field Summary
Fields Modifier and Type Field Description static String
FEATURE_FILTER
Deprecated.static String
FEATURE_HANDLER
Deprecated.
-
Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description Object
getProperty(String property)
Gets a property valueVerifierFilter
getVerifierFilter()
Gets a VerifierFilter.VerifierHandler
getVerifierHandler()
Gets a VerifierHandler.boolean
isFeature(String feature)
Checks whether a feature is supported or not.void
setEntityResolver(EntityResolver handler)
Sets aEntityResolver
to resolve external entity locations.void
setErrorHandler(ErrorHandler handler)
Sets aErrorHandler
that receives validation errors/warnings.void
setFeature(String feature, boolean value)
Sets a value to a feature.void
setProperty(String property, Object value)
Sets a property valueboolean
verify(File file)
validates an XML document.boolean
verify(String uri)
validates an XML document.boolean
verify(Node node)
validates an XML document.boolean
verify(InputSource source)
validates an XML document.
-
-
-
Field Detail
-
FEATURE_HANDLER
static final String FEATURE_HANDLER
Deprecated.a read-only feature that checks whether the implementation supportsgetVerifierHandler
method.Now a verifier implementation is required to support VerifierHandler. Therefore an application doesn't need to check this feature.
- See Also:
- Constant Field Values
-
FEATURE_FILTER
static final String FEATURE_FILTER
Deprecated.a read-only feature that checks whether the implementation supportsgetVerifierFilter
method.Now a verifier implementation is required to support VerifierFilter. Therefore an application doesn't need to check this feature.
- See Also:
- Constant Field Values
-
-
Method Detail
-
isFeature
boolean isFeature(String feature) throws SAXNotRecognizedException, SAXNotSupportedException
Checks whether a feature is supported or not.This method is modeled after SAX2.
- Parameters:
feature
- feature name- Throws:
SAXNotRecognizedException
SAXNotSupportedException
-
setFeature
void setFeature(String feature, boolean value) throws SAXNotRecognizedException, SAXNotSupportedException
Sets a value to a feature.This method is modeled after SAX2.
- Parameters:
feature
- feature namevalue
- feature value- Throws:
SAXNotRecognizedException
SAXNotSupportedException
-
getProperty
Object getProperty(String property) throws SAXNotRecognizedException, SAXNotSupportedException
Gets a property valueThis method is modeled after SAX2.
- Parameters:
property
- property name- Throws:
SAXNotRecognizedException
SAXNotSupportedException
-
setProperty
void setProperty(String property, Object value) throws SAXNotRecognizedException, SAXNotSupportedException
Sets a property valueThis method is modeled after SAX2.
- Parameters:
property
- property namevalue
- property value- Throws:
SAXNotRecognizedException
SAXNotSupportedException
-
setErrorHandler
void setErrorHandler(ErrorHandler handler)
Sets aErrorHandler
that receives validation errors/warnings.If no error handler is set explicitly, a verifier implementation will not report any error/warning at all. However, the caller can still obtain the result of validation through the return value.
Conscious developers should always set an error handler explicitly as the default behavior has been changed several times.
- Parameters:
handler
- this object will receive errors/warning encountered during the validation.
-
setEntityResolver
void setEntityResolver(EntityResolver handler)
Sets aEntityResolver
to resolve external entity locations.The given entity resolver is used in the
verify(java.lang.String)
method and theverify(org.xml.sax.InputSource)
method.- Parameters:
handler
- EntityResolver
-
verify
boolean verify(String uri) throws SAXException, IOException
validates an XML document.- Parameters:
uri
- URI of a document.- Returns:
- true if the document is valid. false if otherwise.
- Throws:
SAXException
IOException
-
verify
boolean verify(InputSource source) throws SAXException, IOException
validates an XML document.- Parameters:
source
- InputSource of a XML document to verify.- Returns:
- true if the document is valid. false if otherwise.
- Throws:
SAXException
IOException
-
verify
boolean verify(File file) throws SAXException, IOException
validates an XML document.- Parameters:
file
- File to be validated- Returns:
- true if the document is valid. false if otherwise.
- Throws:
SAXException
IOException
-
verify
boolean verify(Node node) throws SAXException
validates an XML document.An implementation is required to accept
Document
object as the node parameter. If it also implements partial validation, it can also accepts things likeElement
.- Parameters:
node
- the root DOM node of an XML document.- Returns:
- true if the document is valid. false if otherwise.
- Throws:
UnsupportedOperationException
- If the node type of the node parameter is something which this implementation does not support.SAXException
-
getVerifierHandler
VerifierHandler getVerifierHandler() throws SAXException
Gets a VerifierHandler.you can use the returned
VerifierHandler
to validate documents through SAX.Note that two different invocations of this method can return the same value; this method does NOT necessarily create a new
VerifierHandler
object.- Throws:
SAXException
-
getVerifierFilter
VerifierFilter getVerifierFilter() throws SAXException
Gets a VerifierFilter.you can use the returned
VerifierHandler
to validate documents through SAX.Note that two different invocations of this method can return the same value; this method does NOT necessarily create a new
VerifierFilter
object.- Throws:
SAXException
-
-