51 lines
1.6 KiB
Java
51 lines
1.6 KiB
Java
package it.cavallium.dbengine.database.collections;
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import it.cavallium.dbengine.buffers.BufDataInput;
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import it.cavallium.dbengine.buffers.BufDataOutput;
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import it.cavallium.dbengine.database.serialization.SerializationException;
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import it.cavallium.dbengine.database.serialization.Serializer;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Objects;
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import org.jetbrains.annotations.NotNull;
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class ValueWithHashSerializer<X, Y> implements Serializer<Entry<X, Y>> {
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private final Serializer<X> keySuffixSerializer;
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private final Serializer<Y> valueSerializer;
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ValueWithHashSerializer(
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Serializer<X> keySuffixSerializer,
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Serializer<Y> valueSerializer) {
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this.keySuffixSerializer = keySuffixSerializer;
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this.valueSerializer = valueSerializer;
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}
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@Override
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public @NotNull Entry<X, Y> deserialize(@NotNull BufDataInput in) throws SerializationException {
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Objects.requireNonNull(in);
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X deserializedKey = keySuffixSerializer.deserialize(in);
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Y deserializedValue = valueSerializer.deserialize(in);
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return Map.entry(deserializedKey, deserializedValue);
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}
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@Override
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public void serialize(@NotNull Entry<X, Y> deserialized, BufDataOutput out) throws SerializationException {
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keySuffixSerializer.serialize(deserialized.getKey(), out);
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valueSerializer.serialize(deserialized.getValue(), out);
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}
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@Override
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public int getSerializedSizeHint() {
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var hint1 = keySuffixSerializer.getSerializedSizeHint();
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var hint2 = valueSerializer.getSerializedSizeHint();
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if (hint1 == -1 && hint2 == -1) {
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return -1;
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} else if (hint1 == -1) {
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return hint2;
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} else {
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return hint1;
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}
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}
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}
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