net.sf.saxon.query
public class DynamicQueryContext extends Object
Constructor Summary | |
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DynamicQueryContext(Configuration config) |
Method Summary | |
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void | clearParameters()
Reset the parameters to an empty list. |
Item | getContextItem()
Get the context item for the query, as set using setContextItem() or setContextNode(). |
DateTimeValue | getCurrentDateTime()
Get the date and time set previously using setCurrentDateTime
or null if none has been set. |
ErrorListener | getErrorListener()
Get the error listener.
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Object | getParameter(String expandedName)
Get the actual value of a parameter to the query.
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protected HashMap | getParameters()
Get the supplied parameters as a HashMap |
URIResolver | getURIResolver()
Get the URI resolver.
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void | setContextItem(Item item)
Set the context item for evaluating the expression. |
void | setContextNode(NodeInfo node)
Set the context item for evaluating the expression to be a node. |
void | setCurrentDateTime(DateTimeValue dateTime)
Set a value to be used as the current date and time for the query. |
void | setErrorListener(ErrorListener listener)
Set the error listener. |
void | setParameter(String expandedName, Object value)
Set a parameter for the query.
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void | setURIResolver(URIResolver resolver)
Set an object that will be used to resolve URIs used in
fn:document() and related functions.
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Returns: the context item if set, or null otherwise.
Since: 8.4
Returns: the current date and time, if it has been set.
Since: 8.5
Returns: the ErrorListener in use
Since: 8.4
Parameters: expandedName the name of the required parameter, in "{uri}local-name" format
Returns: the value of the parameter, if it exists, or null otherwise
Returns: the user-supplied URI resolver if there is one, or the system-defined one otherwise
Since: 8.4
buildDocument
in class QueryProcessor.Parameters: item The item that is to be the context item for the query
Since: 8.4
Deprecated: From Saxon 8.7, the method setContextItem is preferred
Set the context item for evaluating the expression to be a node. If this method is not called, the context node will be undefined. The context node is available as the value of the expression ".". To obtain a NodeInfo by parsing a source document, see the methodbuildDocument
in class QueryProcessor.
Parameters: node The node that is to be the context node for the query
Since: 8.4
Parameters: dateTime The value to be used as the current date and time. This must include a timezone.
Since: 8.5
Parameters: listener the ErrorListener to be used
Since: 8.4
Parameters: expandedName The name of the parameter in "{uri}local-name" format. It is not an error to supply a value for a parameter that has not been declared, the parameter will simply be ignored. If the parameter has been declared in the query (as an external global variable) then it will be initialized with the value supplied. value The value of the parameter. This can be any valid Java object. It follows the same conversion rules as a value returned from a Saxon extension function. An error will occur at query execution time if the supplied value cannot be converted to the required type as declared in the query. For precise control of the type of the value, instantiate one of the classes in the net.sf.saxon.value package, for example net.sf.saxon.value.DayTimeDuration.
Since: 8.4
Parameters: resolver An object that implements the URIResolver interface, or null.
Since: 8.4