109 lines
3.7 KiB
Java
109 lines
3.7 KiB
Java
package it.cavallium.dbengine.database;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.ByteBufAllocator;
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import java.util.List;
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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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@SuppressWarnings("unused")
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@NotAtomic
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public interface LLDictionary extends LLKeyValueDatabaseStructure {
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ByteBufAllocator getAllocator();
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Mono<ByteBuf> get(@Nullable LLSnapshot snapshot, ByteBuf key, boolean existsAlmostCertainly);
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default Mono<ByteBuf> get(@Nullable LLSnapshot snapshot, ByteBuf key) {
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return get(snapshot, key, false);
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}
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Mono<ByteBuf> put(ByteBuf key, ByteBuf value, LLDictionaryResultType resultType);
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Mono<UpdateMode> getUpdateMode();
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Mono<Boolean> update(ByteBuf key, Function<@Nullable ByteBuf, @Nullable ByteBuf> updater, boolean existsAlmostCertainly);
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default Mono<Boolean> update(ByteBuf key, Function<@Nullable ByteBuf, @Nullable ByteBuf> updater) {
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return update(key, updater, false);
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}
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Mono<Void> clear();
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Mono<ByteBuf> remove(ByteBuf key, LLDictionaryResultType resultType);
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Flux<Entry<ByteBuf, ByteBuf>> getMulti(@Nullable LLSnapshot snapshot, Flux<ByteBuf> keys, boolean existsAlmostCertainly);
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default Flux<Entry<ByteBuf, ByteBuf>> getMulti(@Nullable LLSnapshot snapshot, Flux<ByteBuf> keys) {
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return getMulti(snapshot, keys, false);
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}
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Flux<Entry<ByteBuf, ByteBuf>> putMulti(Flux<Entry<ByteBuf, ByteBuf>> entries, boolean getOldValues);
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Flux<Entry<ByteBuf, ByteBuf>> getRange(@Nullable LLSnapshot snapshot, LLRange range, boolean existsAlmostCertainly);
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default Flux<Entry<ByteBuf, ByteBuf>> getRange(@Nullable LLSnapshot snapshot, LLRange range) {
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return getRange(snapshot, range, false);
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}
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Flux<List<Entry<ByteBuf, ByteBuf>>> getRangeGrouped(@Nullable LLSnapshot snapshot,
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LLRange range,
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int prefixLength,
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boolean existsAlmostCertainly);
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default Flux<List<Entry<ByteBuf, ByteBuf>>> getRangeGrouped(@Nullable LLSnapshot snapshot,
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LLRange range,
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int prefixLength) {
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return getRangeGrouped(snapshot, range, prefixLength, false);
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}
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Flux<ByteBuf> getRangeKeys(@Nullable LLSnapshot snapshot, LLRange range);
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Flux<List<ByteBuf>> getRangeKeysGrouped(@Nullable LLSnapshot snapshot, LLRange range, int prefixLength);
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Flux<ByteBuf> getRangeKeyPrefixes(@Nullable LLSnapshot snapshot, LLRange range, int prefixLength);
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Mono<Void> setRange(LLRange range, Flux<Entry<ByteBuf, ByteBuf>> entries);
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default Mono<Void> replaceRange(LLRange range,
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boolean canKeysChange,
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Function<Entry<ByteBuf, ByteBuf>, Mono<Entry<ByteBuf, ByteBuf>>> entriesReplacer,
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boolean existsAlmostCertainly) {
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return Mono.defer(() -> {
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if (canKeysChange) {
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return this
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.setRange(range, this
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.getRange(null, range, existsAlmostCertainly)
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.flatMap(entriesReplacer)
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);
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} else {
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return this
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.putMulti(this
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.getRange(null, range, existsAlmostCertainly)
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.flatMap(entriesReplacer), false)
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.then();
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}
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});
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}
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default Mono<Void> replaceRange(LLRange range,
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boolean canKeysChange,
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Function<Entry<ByteBuf, ByteBuf>, Mono<Entry<ByteBuf, ByteBuf>>> entriesReplacer) {
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return replaceRange(range, canKeysChange, entriesReplacer, false);
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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<ByteBuf, ByteBuf>> getOne(@Nullable LLSnapshot snapshot, LLRange range);
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Mono<ByteBuf> getOneKey(@Nullable LLSnapshot snapshot, LLRange range);
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Mono<Entry<ByteBuf, ByteBuf>> removeOne(LLRange range);
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}
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