Module org.postgresql.pljava.internal

Package org.postgresql.pljava.internal

Class DualState.BBHeapFreeTuple<T>

java.lang.Object

java.lang.ref.Reference<T>

java.lang.ref.WeakReference<T>

org.postgresql.pljava.internal.DualState<T>

org.postgresql.pljava.internal.DualState.SingleGuardedBB<T>

org.postgresql.pljava.internal.DualState.BBHeapFreeTuple<T>

Enclosing class:

DualState<T>

public abstract static class DualState.BBHeapFreeTuple<T>
extends DualState.SingleGuardedBB<T>

A DualState subclass whose only native resource releasing action needed is heap_freetuple of the address of a direct byte buffer.

Nested Class Summary

Nested classes/interfaces inherited from class org.postgresql.pljava.internal.DualState

DualState.BBHeapFreeTuple<T>, DualState.ListHead, DualState.Pinned, DualState.SingleDeleteGlobalRefP<T>, DualState.SingleFreeErrorData<T>, DualState.SingleFreeTupleDesc<T>, DualState.SingleGuardedBB<T>, DualState.SingleGuardedLong<T>, DualState.SingleHeapFreeTuple<T>, DualState.SingleMemContextDelete<T>, DualState.SinglePfree<T>, DualState.SingleSPIcursorClose<T>, DualState.SingleSPIfreeplan<T>, DualState.SingleSPIfreetuptable<T>

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BBHeapFreeTuple(T referent, Lifespan span, ByteBuffer hftTarget)

Method Summary

Modifier and Type	Method	Description
String	formatString()	Return a printf format string resembling "%s something(%s)" where the second %s will be the value being guarded; the "something" should indicate what the value represents, or what will be done with it when released by Java.
protected void	javaStateUnreachable(boolean nativeStateLive)	When the Java state is released or unreachable, a heap_freetuple call is made so the native memory is released without having to wait for release of its containing context.

Methods inherited from class org.postgresql.pljava.internal.DualState.SingleGuardedBB

guardedBuffer, toString

Methods inherited from class org.postgresql.pljava.internal.DualState

adoptionLock, adoptionUnlock, clear, enqueue, get, identifierForMessage, invalidMessage, invalidSqlState, javaStateReleased, lock, m, nativeStateReleased, pin, pinned, pinnedByCurrentThread, pinnedNoChecked, pinUnlessReleased, referent, releasedMessage, releasedSqlState, releaseFromJava, toString, unlessReleased, unlock, unlock, unpin

Methods inherited from class java.lang.ref.Reference

clone, isEnqueued, reachabilityFence, refersTo

Methods inherited from class java.lang.Object

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

Constructor Details

BBHeapFreeTuple

protected BBHeapFreeTuple(T referent,
 Lifespan span,
 ByteBuffer hftTarget)

Method Details

formatString

public String formatString()

Description copied from class: DualState.SingleGuardedBB

Return a printf format string resembling "%s something(%s)" where the second %s will be the value being guarded; the "something" should indicate what the value represents, or what will be done with it when released by Java.

Overrides:

formatString in class DualState.SingleGuardedBB<T>

javaStateUnreachable

protected void javaStateUnreachable(boolean nativeStateLive)

When the Java state is released or unreachable, a heap_freetuple call is made so the native memory is released without having to wait for release of its containing context.

Overrides:

javaStateUnreachable in class DualState<T>

Parameters:

nativeStateLive - true is passed if the instance's "native state" is still considered live, that is, no lifespan callback has been invoked to stamp it invalid (nor has it been "adopted").