59 lines
1.2 KiB
Java
59 lines
1.2 KiB
Java
package it.cavallium.dbengine.database.disk.rocksdb;
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import io.netty5.buffer.api.Drop;
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import io.netty5.buffer.api.Owned;
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import io.netty5.buffer.api.internal.ResourceSupport;
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import org.rocksdb.AbstractSlice;
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import org.rocksdb.DirectSlice;
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public abstract class LLAbstractSlice<T extends AbstractSlice<U>, U> extends ResourceSupport<LLAbstractSlice<T, U>, LLAbstractSlice<T, U>> {
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protected static final Drop<LLAbstractSlice<?, ?>> DROP = new Drop<>() {
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@Override
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public void drop(LLAbstractSlice obj) {
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if (obj.val != null) {
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obj.val.close();
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}
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}
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@Override
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public Drop<LLAbstractSlice<?, ?>> fork() {
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return this;
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}
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@Override
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public void attach(LLAbstractSlice obj) {
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}
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};
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private T val;
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public LLAbstractSlice(T val) {
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//noinspection unchecked
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super((Drop<LLAbstractSlice<T, U>>) (Drop<?>) DROP);
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this.val = val;
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}
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public T getNative() {
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return val;
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}
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@Override
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protected final void makeInaccessible() {
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this.val = null;
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}
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@Override
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protected final Owned<LLAbstractSlice<T, U>> prepareSend() {
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var val = this.val;
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return drop -> {
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var instance = createInstance(val);
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drop.attach(instance);
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return instance;
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};
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}
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protected abstract LLAbstractSlice<T, U> createInstance(T val);
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}
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