77 lines
2.2 KiB
Java
77 lines
2.2 KiB
Java
package it.cavallium.dbengine.database.memory;
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import io.netty5.buffer.api.Buffer;
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import io.netty5.buffer.api.BufferAllocator;
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import io.netty5.buffer.api.Send;
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import it.cavallium.dbengine.database.LLDelta;
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import it.cavallium.dbengine.database.LLDictionaryResultType;
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import it.cavallium.dbengine.database.LLSingleton;
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import it.cavallium.dbengine.database.LLSnapshot;
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import it.cavallium.dbengine.database.UpdateReturnMode;
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import it.cavallium.dbengine.database.serialization.SerializationFunction;
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import org.jetbrains.annotations.Nullable;
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import reactor.core.publisher.Mono;
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public class LLMemorySingleton implements LLSingleton {
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private final LLMemoryDictionary dict;
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private final String columnNameString;
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private final byte[] singletonName;
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private final Mono<Send<Buffer>> singletonNameBufMono;
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public LLMemorySingleton(LLMemoryDictionary dict, String columnNameString, byte[] singletonName) {
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this.dict = dict;
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this.columnNameString = columnNameString;
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this.singletonName = singletonName;
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this.singletonNameBufMono = Mono.fromCallable(() -> dict
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.getAllocator()
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.allocate(singletonName.length)
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.writeBytes(singletonName)
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.send());
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}
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@Override
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public String getDatabaseName() {
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return dict.getDatabaseName();
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}
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@Override
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public BufferAllocator getAllocator() {
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return dict.getAllocator();
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}
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@Override
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public Mono<Send<Buffer>> get(@Nullable LLSnapshot snapshot) {
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return dict.get(snapshot, singletonNameBufMono);
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}
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@Override
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public Mono<Void> set(Mono<Send<Buffer>> value) {
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var bbKey = singletonNameBufMono;
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return dict
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.put(bbKey, value, LLDictionaryResultType.VOID)
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.then();
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}
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@Override
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public Mono<Send<Buffer>> update(SerializationFunction<@Nullable Send<Buffer>, @Nullable Buffer> updater,
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UpdateReturnMode updateReturnMode) {
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return dict.update(singletonNameBufMono, updater, updateReturnMode);
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}
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@Override
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public Mono<Send<LLDelta>> updateAndGetDelta(SerializationFunction<@Nullable Send<Buffer>, @Nullable Buffer> updater) {
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return dict.updateAndGetDelta(singletonNameBufMono, updater);
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}
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@Override
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public String getColumnName() {
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return columnNameString;
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}
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@Override
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public String getName() {
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return new String(singletonName);
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}
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}
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