Module org.elasticsearch.simdvec

Package org.elasticsearch.simdvec.internal.vectorization

Class JdkFeatures

java.lang.Object

org.elasticsearch.simdvec.internal.vectorization.JdkFeatures

public final class JdkFeatures
extends Object

JDK feature-level constants that do not depend on incubator modules. Separated from PanamaVectorConstants so that accessing these constants does not trigger class initialization of Panama vector types (which requires the module read for jdk.incubator.vector to have been established first).

Field Summary

Fields

Modifier and Type	Field	Description
static final boolean	SUPPORTS_HEAP_SEGMENTS	Whether the current JDK supports passing heap-backed MemorySegments to native downcalls.

Method Summary

Methods inherited from class java.lang.Object

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

Field Details

SUPPORTS_HEAP_SEGMENTS

public static final boolean SUPPORTS_HEAP_SEGMENTS

Whether the current JDK supports passing heap-backed MemorySegments to native downcalls. This is true on JDK 22+, where heap segments work with Panama FFM native calls. On JDK 21, heap segments cannot be passed to native function handles.