net.sf.saxon.functions

Class Doc

public class Doc extends SystemFunction

Implement the fn:doc() function - a simplified form of the Document function

Field Summary
static int	DOC
static int	DOC_AVAILABLE

Method Summary
void	checkArguments(StaticContext env)
int	computeSpecialProperties() Get the static properties of this expression (other than its type).
Item	evaluateItem(XPathContext context)
Expression	preEvaluate(StaticContext env) preEvaluate: this method suppresses compile-time evaluation by doing nothing
void	sendDocument(XPathContext context, Receiver out) Copy the document identified by this expression to a given Receiver.

Field Detail

Method Detail

checkArguments

public void checkArguments(StaticContext env)

Get the static properties of this expression (other than its type). The result is bit-signficant. These properties are used for optimizations. In general, if property bit is set, it is true, but if it is unset, the value is unknown.

evaluateItem

public Item evaluateItem(XPathContext context)

preEvaluate

public Expression preEvaluate(StaticContext env)

preEvaluate: this method suppresses compile-time evaluation by doing nothing

sendDocument

public void sendDocument(XPathContext context, Receiver out)

Copy the document identified by this expression to a given Receiver. This method is used only when it is known that the document is being copied, because there is then no problem about node identity.