CavalliumDBEngine/src/main/java/it/cavallium/dbengine/database/collections/SubStageGetterMap.java
2023-02-22 16:21:13 +01:00

34 lines
1.2 KiB
Java

package it.cavallium.dbengine.database.collections;
import it.cavallium.dbengine.buffers.Buf;
import it.cavallium.dbengine.client.CompositeSnapshot;
import it.cavallium.dbengine.database.LLDictionary;
import it.cavallium.dbengine.database.serialization.Serializer;
import it.cavallium.dbengine.database.serialization.SerializerFixedBinaryLength;
import it.unimi.dsi.fastutil.objects.Object2ObjectSortedMap;
import org.jetbrains.annotations.Nullable;
public class SubStageGetterMap<T, U> implements
SubStageGetter<Object2ObjectSortedMap<T, U>, DatabaseMapDictionary<T, U>> {
final SerializerFixedBinaryLength<T> keySerializer;
final Serializer<U> valueSerializer;
public SubStageGetterMap(SerializerFixedBinaryLength<T> keySerializer,
Serializer<U> valueSerializer) {
this.keySerializer = keySerializer;
this.valueSerializer = valueSerializer;
}
@Override
public DatabaseMapDictionary<T, U> subStage(LLDictionary dictionary,
@Nullable CompositeSnapshot snapshot,
Buf prefixKey) {
return DatabaseMapDictionary.tail(dictionary, prefixKey, keySerializer, valueSerializer);
}
public int getKeyBinaryLength() {
return keySerializer.getSerializedBinaryLength();
}
}