Package org.xmldb.api.sdk.modules

Class SimpleXPathQueryService

java.lang.Object

org.xmldb.api.sdk.SimpleConfigurable

org.xmldb.api.sdk.modules.SimpleXPathQueryService

All Implemented Interfaces:

Configurable, Service, XPathQueryService

Direct Known Subclasses:

XPathQueryServiceImpl

public abstract class SimpleXPathQueryService
extends SimpleConfigurable
implements XPathQueryService

XPathQueryService is a Service that enables the execution of XPath queries within the context of a Collection.

Field Summary

Fields inherited from interface org.xmldb.api.modules.XPathQueryService

SERVICE_NAME

Constructor Summary

Constructors

Constructor	Description
SimpleXPathQueryService()

Method Summary

Modifier and Type	Method	Description
void	clearNamespaces()	Removes all namespace mappings stored in the internal namespace map.
String	getName()	Returns the service name
String	getNamespace(String prefix)	Returns the URI string associated with prefix.
String	getVersion()	Returns the version of the Service
ResourceSet	query(String query)	Run an XPath query againt the Collection.
ResourceSet	queryResource(String id, String query)	Run an XPath query against an XML resource stored in the Collection associated with this service.
void	removeNamespace(String prefix)	Removes the namespace mapping associated with prefix.
void	setCollection(Collection col)	Sets the Collection attribute of the Service object
void	setNamespace(String prefix, String uri)	Sets a namespace mapping in the internal namespace map used to evaluate queries.

Methods inherited from class org.xmldb.api.sdk.SimpleConfigurable

getProperty, setProperty

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.xmldb.api.base.Configurable

getProperty, setProperty

Constructor Details

SimpleXPathQueryService

public SimpleXPathQueryService()

Method Details

getName

public String getName()
               throws XMLDBException

Returns the service name

Specified by:

getName in interface Service

Returns:

the name of the object.

Throws:

XMLDBException - with expected error codes.
ErrorCodes.VENDOR_ERROR for any vendor specific errors that occur.

getVersion

public String getVersion()
                  throws XMLDBException

Returns the version of the Service

Specified by:

getVersion in interface Service

Returns:

The Version value

Throws:

XMLDBException - with expected error codes.
ErrorCodes.VENDOR_ERROR for any vendor specific errors that occur.

setCollection

public void setCollection(Collection col)
                   throws XMLDBException

Sets the Collection attribute of the Service object

Specified by:

setCollection in interface Service

Parameters:

col - The new Collection value

Throws:

XMLDBException - with expected error codes.
ErrorCodes.VENDOR_ERROR for any vendor specific errors that occur.

setNamespace

public void setNamespace(String prefix,
 String uri)
                  throws XMLDBException

Sets a namespace mapping in the internal namespace map used to evaluate queries.

Specified by:

setNamespace in interface XPathQueryService

Parameters:

prefix - The prefix to set in the map. If prefix is empty or null the default namespace will be associated with the provided URI.

uri - The URI for the namespace to be associated with prefix.

Throws:

XMLDBException - with expected error codes.
ErrorCodes.VENDOR_ERROR for any vendor specific errors that occur.
TODO: probably need some special error here.

getNamespace

public String getNamespace(String prefix)
                    throws XMLDBException

Returns the URI string associated with prefix.

Specified by:

getNamespace in interface XPathQueryService

Parameters:

prefix - The prefix to retrieve from the namespace map.

Returns:

The URI associated with prefix

Throws:

XMLDBException - with expected error codes.
ErrorCodes.VENDOR_ERROR for any vendor specific errors that occur.

removeNamespace

public void removeNamespace(String prefix)
                     throws XMLDBException

Removes the namespace mapping associated with prefix.

Specified by:

removeNamespace in interface XPathQueryService

Parameters:

prefix - The prefix to remove from the namespace map. If prefix is null or empty the mapping for the default namespace will be removed.

Throws:

XMLDBException - with expected error codes.
ErrorCodes.VENDOR_ERROR for any vendor specific errors that occur.

clearNamespaces

public void clearNamespaces()
                     throws XMLDBException

Removes all namespace mappings stored in the internal namespace map.

Specified by:

clearNamespaces in interface XPathQueryService

Throws:

XMLDBException - with expected error codes.
ErrorCodes.VENDOR_ERROR for any vendor specific errors that occur.

query

public ResourceSet query(String query)
                  throws XMLDBException

Run an XPath query againt the Collection. The result is a ResourceIterator containing the results of the query.

Specified by:

query in interface XPathQueryService

Parameters:

query - The XPath query string to use.

Returns:

A ResourceIterator containing the results of the query.

Throws:

XMLDBException - with expected error codes.
ErrorCodes.VENDOR_ERROR for any vendor specific errors that occur.

queryResource

public ResourceSet queryResource(String id,
 String query)
                          throws XMLDBException

Run an XPath query against an XML resource stored in the Collection associated with this service. The result is a ResourceSet containing the results of the query.

Specified by:

queryResource in interface XPathQueryService

Parameters:

id - The id of the document to run the query against.

query - The XPath query string to use.

Returns:

A ResourceSet containing the results of the query.

Throws:

XMLDBException - with expected error codes.
ErrorCodes.VENDOR_ERROR for any vendor specific errors that occur.