46 lines
1.6 KiB
Java
46 lines
1.6 KiB
Java
package it.cavallium.dbengine.database;
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import java.util.Map.Entry;
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import java.util.function.Function;
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import org.jetbrains.annotations.Nullable;
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import org.warp.commonutils.concurrency.atomicity.NotAtomic;
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import reactor.core.publisher.Flux;
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import reactor.core.publisher.Mono;
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@NotAtomic
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public interface LLDictionary extends LLKeyValueDatabaseStructure {
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Mono<byte[]> get(@Nullable LLSnapshot snapshot, byte[] key);
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Mono<byte[]> put(byte[] key, byte[] value, LLDictionaryResultType resultType);
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Mono<byte[]> remove(byte[] key, LLDictionaryResultType resultType);
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Flux<Entry<byte[], byte[]>> getMulti(@Nullable LLSnapshot snapshot, Flux<byte[]> keys);
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Flux<Entry<byte[], byte[]>> putMulti(Flux<Entry<byte[], byte[]>> entries, boolean getOldValues);
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Flux<Entry<byte[], byte[]>> getRange(@Nullable LLSnapshot snapshot, LLRange range);
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Flux<Entry<byte[], byte[]>> setRange(LLRange range, Flux<Entry<byte[], byte[]>> entries, boolean getOldValues);
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default Mono<Void> replaceRange(LLRange range, boolean canKeysChange, Function<Entry<byte[], byte[]>, Mono<Entry<byte[], byte[]>>> entriesReplacer) {
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Flux<Entry<byte[], byte[]>> replacedFlux = this.getRange(null, range).flatMap(entriesReplacer);
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if (canKeysChange) {
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return this
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.setRange(range, replacedFlux, false)
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.then();
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} else {
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return this
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.putMulti(replacedFlux, false)
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.then();
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}
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}
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Mono<Boolean> isRangeEmpty(@Nullable LLSnapshot snapshot, LLRange range);
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Mono<Long> sizeRange(@Nullable LLSnapshot snapshot, LLRange range, boolean fast);
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Mono<Entry<byte[], byte[]>> removeOne(LLRange range);
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}
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