net.sf.saxon.expr
public abstract class PJConverter extends Object implements Serializable
Method Summary | |
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static PJConverter | allocate(Configuration config, ItemType itemType, int cardinality, Class targetClass)
Factory method to instantiate a converter from a given XPath type to a given Java class |
static PJConverter | allocateNodeListCreator(Configuration config, Object node)
Static method to get a converter from an XPath sequence of nodes to the representation of a NodeList
in an external object model (this is really a special for DOM, which uses NodeList rather than general
purpose Java collection classes) |
String | compile(String var, Class targetClass, CodeGeneratorService compiler)
Generate Java code to implement the type conversion |
abstract Object | convert(ValueRepresentation value, Class targetClass, XPathContext context)
Convert an XPath value to a Java value of a specified class |
static SequenceType | getEquivalentItemType(Class javaClass)
Get the nearest XPath equivalent to a Java class. |
Parameters: config the Saxon Configuration itemType the item type of the XPath value to be converted cardinality the cardinality of the XPath value to be converted targetClass the Java class required for the conversion result
Returns: a suitable converter
Parameters: var the name of a variable whose value will be the XPath ValueRepresentation to be converted targetClass the required class of the Java value compiler provides supporting services by callback
Returns: the text of a Java expression whose result will be a Java object/value of the required type
Parameters: value the supplied XPath value targetClass the class of the required Java value context the XPath dynamic context
Returns: the corresponding Java value, which is guaranteed to be an instance of the target class (except that an empty sequence is converted to null)
Throws: XPathException if the conversion is not possible or fails
Parameters: javaClass a Java class
Returns: the nearest equivalent XPath SequenceType