40 lines
1.3 KiB
Java
40 lines
1.3 KiB
Java
package it.cavallium.dbengine.database.collections;
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import io.netty5.buffer.Buffer;
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import it.cavallium.dbengine.client.CompositeSnapshot;
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import it.cavallium.dbengine.database.BufSupplier;
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import it.cavallium.dbengine.database.LLDictionary;
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import it.cavallium.dbengine.database.serialization.Serializer;
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import it.cavallium.dbengine.database.serialization.SerializerFixedBinaryLength;
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import it.unimi.dsi.fastutil.objects.Object2ObjectSortedMap;
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import org.jetbrains.annotations.Nullable;
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import reactor.core.publisher.Mono;
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public class SubStageGetterMap<T, U> implements
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SubStageGetter<Object2ObjectSortedMap<T, U>, DatabaseMapDictionary<T, U>> {
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final SerializerFixedBinaryLength<T> keySerializer;
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final Serializer<U> valueSerializer;
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public SubStageGetterMap(SerializerFixedBinaryLength<T> keySerializer,
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Serializer<U> valueSerializer) {
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this.keySerializer = keySerializer;
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this.valueSerializer = valueSerializer;
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}
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@Override
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public Mono<DatabaseMapDictionary<T, U>> subStage(LLDictionary dictionary,
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@Nullable CompositeSnapshot snapshot,
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Mono<Buffer> prefixKeyMono) {
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return prefixKeyMono.map(prefixKey -> DatabaseMapDictionary.tail(dictionary,
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BufSupplier.ofOwned(prefixKey),
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keySerializer,
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valueSerializer
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));
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}
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public int getKeyBinaryLength() {
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return keySerializer.getSerializedBinaryLength();
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}
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}
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