Package org.rumbledb.runtime.cursor

Class ContextOrArgumentLocalCursor<O>

java.lang.Object

org.rumbledb.runtime.cursor.AbstractLocalCursor<O>

org.rumbledb.runtime.cursor.ContextOrArgumentLocalCursor<O>

All Implemented Interfaces:

AutoCloseable, Cursor<O>

public final class ContextOrArgumentLocalCursor<O>
extends AbstractLocalCursor<O>

Resolves an explicit argument, or the context item when the argument is omitted, and maps the resolved value.

An explicitly supplied empty sequence is passed to the mapper as null. A missing argument instead resolves the context item, preserving the distinction required by context-dependent functions.

Method Summary

Modifier and Type	Method	Description
protected void	closeLocal()
static <O> ContextOrArgumentLocalCursor<O>	flatMapArgument(@NonNull ItemRuntimePlan argumentPlan, @NonNull DynamicContext context, @NonNull Function<? super Item,? extends List<? extends O>> mapper, @NonNull ExceptionMetadata metadata)
static <O> ContextOrArgumentLocalCursor<O>	flatMapFirstArgumentOrContext(@NonNull List<? extends ItemRuntimePlan> argumentPlans, @NonNull DynamicContext context, @NonNull Function<? super Item,? extends List<? extends O>> mapper, @NonNull ExceptionMetadata metadata)
protected boolean	hasNextLocal()
static <O> ContextOrArgumentLocalCursor<O>	mapArgument(@NonNull ItemRuntimePlan argumentPlan, @NonNull DynamicContext context, @NonNull Function<? super Item,? extends O> mapper, @NonNull ExceptionMetadata metadata)
static <O> ContextOrArgumentLocalCursor<O>	mapFirstArgumentOrContext(@NonNull List<? extends ItemRuntimePlan> argumentPlans, @NonNull DynamicContext context, @NonNull Function<? super Item,? extends O> mapper, @NonNull ExceptionMetadata metadata)
protected O	nextLocal()
protected void	openLocal()

Methods inherited from class org.rumbledb.runtime.cursor.AbstractLocalCursor

close, getMetadata, hasNext, invalidState, next

Methods inherited from class java.lang.Object

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

Method Details

mapArgument

public static <O> ContextOrArgumentLocalCursor<O> mapArgument(@NonNull
 @NonNull ItemRuntimePlan argumentPlan,
 @NonNull
 @NonNull DynamicContext context,
 @NonNull
 @NonNull Function<? super Item,? extends O> mapper,
 @NonNull
 @NonNull ExceptionMetadata metadata)

mapFirstArgumentOrContext

public static <O> ContextOrArgumentLocalCursor<O> mapFirstArgumentOrContext(@NonNull
 @NonNull List<? extends ItemRuntimePlan> argumentPlans,
 @NonNull
 @NonNull DynamicContext context,
 @NonNull
 @NonNull Function<? super Item,? extends O> mapper,
 @NonNull
 @NonNull ExceptionMetadata metadata)

flatMapArgument

public static <O> ContextOrArgumentLocalCursor<O> flatMapArgument(@NonNull
 @NonNull ItemRuntimePlan argumentPlan,
 @NonNull
 @NonNull DynamicContext context,
 @NonNull
 @NonNull Function<? super Item,? extends List<? extends O>> mapper,
 @NonNull
 @NonNull ExceptionMetadata metadata)

flatMapFirstArgumentOrContext

public static <O> ContextOrArgumentLocalCursor<O> flatMapFirstArgumentOrContext(@NonNull
 @NonNull List<? extends ItemRuntimePlan> argumentPlans,
 @NonNull
 @NonNull DynamicContext context,
 @NonNull
 @NonNull Function<? super Item,? extends List<? extends O>> mapper,
 @NonNull
 @NonNull ExceptionMetadata metadata)

openLocal

protected void openLocal()

Specified by:

openLocal in class AbstractLocalCursor<O>

hasNextLocal

protected boolean hasNextLocal()

Specified by:

hasNextLocal in class AbstractLocalCursor<O>

nextLocal

protected O nextLocal()

Specified by:

nextLocal in class AbstractLocalCursor<O>

closeLocal

protected void closeLocal()

Specified by:

closeLocal in class AbstractLocalCursor<O>