CavalliumDBEngine/src/main/java/it/cavallium/dbengine/database/LLDictionary.java

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package it.cavallium.dbengine.database;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import it.cavallium.dbengine.client.BadBlock;
import java.util.List;
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import java.util.Map.Entry;
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import java.util.Optional;
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import java.util.function.BiFunction;
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import java.util.function.Function;
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import org.jetbrains.annotations.Nullable;
import org.warp.commonutils.concurrency.atomicity.NotAtomic;
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import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
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import reactor.util.function.Tuple2;
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import reactor.util.function.Tuple3;
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@SuppressWarnings("unused")
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@NotAtomic
public interface LLDictionary extends LLKeyValueDatabaseStructure {
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String getColumnName();
ByteBufAllocator getAllocator();
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Mono<ByteBuf> get(@Nullable LLSnapshot snapshot, ByteBuf key, boolean existsAlmostCertainly);
default Mono<ByteBuf> get(@Nullable LLSnapshot snapshot, ByteBuf key) {
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return get(snapshot, key, false);
}
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Mono<ByteBuf> put(ByteBuf key, ByteBuf value, LLDictionaryResultType resultType);
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Mono<UpdateMode> getUpdateMode();
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default Mono<ByteBuf> update(ByteBuf key,
Function<@Nullable ByteBuf, @Nullable ByteBuf> updater,
UpdateReturnMode updateReturnMode,
boolean existsAlmostCertainly) {
return this
.updateAndGetDelta(key, updater, existsAlmostCertainly)
.transform(prev -> LLUtils.resolveDelta(prev, updateReturnMode));
}
default Mono<ByteBuf> update(ByteBuf key,
Function<@Nullable ByteBuf, @Nullable ByteBuf> updater,
UpdateReturnMode returnMode) {
return update(key, updater, returnMode, false);
}
Mono<Delta<ByteBuf>> updateAndGetDelta(ByteBuf key,
Function<@Nullable ByteBuf, @Nullable ByteBuf> updater,
boolean existsAlmostCertainly);
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default Mono<Delta<ByteBuf>> updateAndGetDelta(ByteBuf key,
Function<@Nullable ByteBuf, @Nullable ByteBuf> updater) {
return updateAndGetDelta(key, updater, false);
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}
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Mono<Void> clear();
Mono<ByteBuf> remove(ByteBuf key, LLDictionaryResultType resultType);
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<K> Flux<Tuple3<K, ByteBuf, Optional<ByteBuf>>> getMulti(@Nullable LLSnapshot snapshot,
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Flux<Tuple2<K, ByteBuf>> keys,
boolean existsAlmostCertainly);
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default <K> Flux<Tuple3<K, ByteBuf, Optional<ByteBuf>>> getMulti(@Nullable LLSnapshot snapshot, Flux<Tuple2<K, ByteBuf>> keys) {
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return getMulti(snapshot, keys, false);
}
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Flux<Entry<ByteBuf, ByteBuf>> putMulti(Flux<Entry<ByteBuf, ByteBuf>> entries, boolean getOldValues);
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<X> Flux<ExtraKeyOperationResult<ByteBuf, X>> updateMulti(Flux<Tuple2<ByteBuf, X>> entries,
BiFunction<ByteBuf, X, ByteBuf> updateFunction);
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);
}
Flux<List<Entry<ByteBuf, ByteBuf>>> getRangeGrouped(@Nullable LLSnapshot snapshot,
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LLRange range,
int prefixLength,
boolean existsAlmostCertainly);
default Flux<List<Entry<ByteBuf, ByteBuf>>> getRangeGrouped(@Nullable LLSnapshot snapshot,
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LLRange range,
int prefixLength) {
return getRangeGrouped(snapshot, range, prefixLength, false);
}
Flux<ByteBuf> getRangeKeys(@Nullable LLSnapshot snapshot, LLRange range);
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);
Flux<BadBlock> badBlocks(LLRange range);
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Mono<Void> setRange(LLRange range, Flux<Entry<ByteBuf, ByteBuf>> entries);
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default Mono<Void> replaceRange(LLRange range,
boolean canKeysChange,
Function<Entry<ByteBuf, ByteBuf>, Mono<Entry<ByteBuf, ByteBuf>>> entriesReplacer,
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boolean existsAlmostCertainly) {
return Mono.defer(() -> {
if (canKeysChange) {
return this
.setRange(range, this
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.getRange(null, range, existsAlmostCertainly)
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.flatMap(entriesReplacer)
);
} else {
return this
.putMulti(this
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.getRange(null, range, existsAlmostCertainly)
.flatMap(entriesReplacer), false)
.then();
}
});
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}
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default Mono<Void> replaceRange(LLRange range,
boolean canKeysChange,
Function<Entry<ByteBuf, ByteBuf>, Mono<Entry<ByteBuf, ByteBuf>>> entriesReplacer) {
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return replaceRange(range, canKeysChange, entriesReplacer, false);
}
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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);
Mono<ByteBuf> getOneKey(@Nullable LLSnapshot snapshot, LLRange range);
Mono<Entry<ByteBuf, ByteBuf>> removeOne(LLRange range);
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}