com.icl.saxon.functions
Class Document
java.lang.Object
|
+--com.icl.saxon.expr.Expression
|
+--com.icl.saxon.expr.Function
|
+--com.icl.saxon.functions.Document
- public class Document
- extends Function
Methods inherited from class com.icl.saxon.expr.Expression |
containsReferences, enumerate, evaluateAsBoolean, evaluateAsNodeSet, evaluateAsNumber, evaluateAsString, getStaticContext, indent, isContextDocumentNodeSet, make, outputStringValue, setStaticContext, usesCurrent |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Document
public Document()
getName
public java.lang.String getName()
- Description copied from class:
Function
- Get the name of the function.
This method must be implemented in all subclasses.
- Overrides:
getName
in class Function
- Following copied from class:
com.icl.saxon.expr.Function
- Returns:
- the name of the function, as used in XSL expressions, but excluding
its namespace prefix
getDataType
public int getDataType()
- Determine the data type of the expression
- Overrides:
getDataType
in class Expression
- Returns:
- Value.NODESET
simplify
public Expression simplify()
throws XPathException
- Simplify and validate.
- Overrides:
simplify
in class Expression
- Following copied from class:
com.icl.saxon.expr.Expression
- Returns:
- the simplified expression
evaluate
public Value evaluate(Context c)
throws XPathException
- evaluate() handles evaluation of the function
- Overrides:
evaluate
in class Expression
- Following copied from class:
com.icl.saxon.expr.Expression
- Parameters:
context
- The context in which the expression is to be evaluated- Returns:
- the value of the expression, evaluated in the current context
getDocuments
public NodeSetValue getDocuments(Value arg0,
NodeSetValue arg1,
java.lang.String styleSheetURL,
Context context)
throws XPathException
- getDocuments() evaluates the function.
- Parameters:
arg0
- The value of the first argumentarg1
- The value of the second argument, if there is one; otherwise nullstyleSheetURL
- The URI of the node in the stylesheet containing the expression.
Needed only when the first argument is not a nodeset and the second argument is omitted.context
- The evaluation context- Returns:
- a NodeSetValue containing the root nodes of the selected documents (or element
nodes if the URI references contain fragment identifiers)
getDependencies
public int getDependencies()
- Determine which aspects of the context the expression depends on. The result is
a bitwise-or'ed value composed from constants such as Context.VARIABLES and
Context.CURRENT_NODE
- Overrides:
getDependencies
in class Expression
reduce
public Expression reduce(int dep,
Context context)
throws XPathException
- Remove dependencies.
- Overrides:
reduce
in class Expression
- Following copied from class:
com.icl.saxon.expr.Expression
- Parameters:
dependencies
- The dependencies to be removed, e.g. Context.VARIABLEScontext
- The context to be used for the partial evaluation- Returns:
- a new expression (or Value) that does not have any of the specified dependencies