Module dev.metaschema.core

Package dev.metaschema.core.metapath.function

Class CalledContext

java.lang.Object

dev.metaschema.core.metapath.function.CalledContext

public final class CalledContext
extends Object

Represents an immutable execution context for function calls in Metapath expressions.

This class is designed to support both named and anonymous functions by maintaining the function instance, its arguments, and the current context item. It ensures thread-safety through immutability and is primarily used during the evaluation of Metapath expressions and for caching the function results.

Constructor Summary

Constructors

Constructor	Description
CalledContext(IFunction function, List<ISequence<?>> arguments, IItem contextItem)	Creates an immutable execution context for a function call.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
List<ISequence<?>>	getArguments()	Get the arguments associated with the calling context.
IItem	getContextItem()	Get the node item focus associated with the calling context.
IFunction	getFunction()	Get the function instance associated with the calling context.
int	hashCode()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CalledContext

public CalledContext(@NonNull
 IFunction function,
 @NonNull
 List<ISequence<?>> arguments,
 @Nullable
 IItem contextItem)

Creates an immutable execution context for a function call.

Parameters:

function - the function to be executed

arguments - the list of evaluated arguments as sequences, must match function's arity

contextItem - the optional context item representing the current node in scope

Method Details

getFunction

@NonNull
public IFunction getFunction()

Get the function instance associated with the calling context.

Returns:

the function instance

getContextItem

@Nullable
public IItem getContextItem()

Get the node item focus associated with the calling context.

Returns:

the context item, or null if no context is set

getArguments

@NonNull
public List<ISequence<?>> getArguments()

Get the arguments associated with the calling context.

Returns:

the arguments

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object