StaticContextAccessor

java.lang.Object
- net.sf.saxon.functions.AbstractFunction
- - net.sf.saxon.functions.SystemFunction
  - - net.sf.saxon.functions.StaticContextAccessor

All Implemented Interfaces:

Callable, Function, GroundedValue, Item, Sequence

Direct Known Subclasses:

StaticContextAccessor.DefaultCollation
```
public abstract class StaticContextAccessor
extends SystemFunction
```
A StaticContextAccessor is a function that takes no arguments, but operates implicitly on the static context. In the case of a dynamic call, the context that is used is the one at the point where the function item is created.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class StaticContextAccessor.DefaultCollation
Implement the XPath function default-collation()

Constructor Summary

Constructors
Constructor Description

StaticContextAccessor()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`AtomicValue`	`call(XPathContext context, Sequence[] arguments)`	Evaluate the expression
`abstract AtomicValue`	`evaluate(RetainedStaticContext rsc)`	Method to do the actual evaluation, which must be implemented in a subclass
`Expression`	`makeFunctionCall(Expression[] arguments)`	Make an expression that either calls this function, or that is equivalent to a call on this function

Methods inherited from class net.sf.saxon.functions.AbstractFunction
atomize, deepEquals, effectiveBooleanValue, getAnnotations, getStringValue, getStringValueCS, isArray, isMap, makeNewContext, simplify, typeCheck

Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.sf.saxon.om.Function
getGenre

Methods inherited from interface net.sf.saxon.om.GroundedValue
asIterable, concatenate, containsNode, materialize

Methods inherited from interface net.sf.saxon.om.Item
getLength, head, isStreamed, itemAt, iterate, reduce, subsequence

Methods inherited from interface net.sf.saxon.om.Sequence
makeRepeatable

- Constructor Detail
  - StaticContextAccessor
```
public StaticContextAccessor()
```
- Method Detail
  - evaluate
```
public abstract AtomicValue evaluate(RetainedStaticContext rsc)
```
    Method to do the actual evaluation, which must be implemented in a subclass
    
    Parameters:
    
    rsc - the retained static context
    
    Returns:
    
    the result of the evaluation
  - call
```
public AtomicValue call(XPathContext context,
                        Sequence[] arguments)
                 throws XPathException
```
    Evaluate the expression
    
    Parameters:
    
    context - the dynamic evaluation context
    
    arguments - the values of the arguments, supplied as Sequences
    
    Returns:
    
    the result of the evaluation, in the form of a Sequence
    
    Throws:
    
    XPathException - if a dynamic error occurs during the evaluation of the expression
  - makeFunctionCall
```
public Expression makeFunctionCall(Expression[] arguments)
```
    Description copied from class: SystemFunction
    
    Make an expression that either calls this function, or that is equivalent to a call on this function
    
    Overrides:
    
    makeFunctionCall in class SystemFunction
    
    Parameters:
    
    arguments - the supplied arguments to the function call
    
    Returns:
    
    either a function call on this function, or an expression that delivers the same result