Module dev.metaschema.core

Package dev.metaschema.core.metapath.item.function

Interface IKeySpecifier

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface IKeySpecifier

A common interface for all key specifier implementations.

Method Summary

Modifier and Type	Method	Description
Stream<? extends ICollectionValue>	lookup(IItem targetItem, DynamicContext dynamicContext, ISequence<?> focus)	Perform a lookup on the provided target item.

Method Details

lookup

Stream<? extends ICollectionValue> lookup(@NonNull
 IItem targetItem,
 @NonNull
 DynamicContext dynamicContext,
 @NonNull
 ISequence<?> focus)

Perform a lookup on the provided target item.

Parameters:

targetItem - the item to query

dynamicContext - the dynamic context to use for expression evaluation

focus - the focus item for expression evaluation

Returns:

a stream of collection values matching this key specifier