Fixes weird reference to LZ4Factory in TabletSerializer interface.

cottontaildb-dbms/src/main/kotlin/org/vitrivr/cottontail/storage/serializers/tablets/LZ4TabletSerializer.kt

@@ -3,6 +3,7 @@ package org.vitrivr.cottontail.storage.serializers.tablets
 import jetbrains.exodus.ArrayByteIterable
 import jetbrains.exodus.ByteIterable
 import net.jpountz.lz4.LZ4Compressor
+import net.jpountz.lz4.LZ4Factory
 import org.vitrivr.cottontail.core.types.Types
 import org.vitrivr.cottontail.core.types.Value
 import org.vitrivr.cottontail.core.values.DoubleVectorValue
@@ -22,10 +23,10 @@ import java.nio.ByteBuffer
 class LZ4TabletSerializer<T: Value>(override val type: Types<T>, val size: Int): TabletSerializer<T> {
 
     /** The [LZ4Compressor] instance used by this [LZ4TabletSerializer]. */
-    private val compressor: LZ4Compressor = TabletSerializer.FACTORY.highCompressor()
+    private val compressor: LZ4Compressor = LZ4Factory.fastestInstance().highCompressor()
 
     /** The [LZ4Compressor] instance used by this [LZ4TabletSerializer]. */
-    private val decompressor = TabletSerializer.FACTORY.fastDecompressor()
+    private val decompressor = LZ4Factory.fastestInstance().fastDecompressor()
 
     /** Internal buffer used to store compressed data. */
     private val compressBuffer: ByteBuffer = ByteBuffer.allocate(this.compressor.maxCompressedLength( this.size.shr(3) + when(type) {

cottontaildb-dbms/src/main/kotlin/org/vitrivr/cottontail/storage/serializers/tablets/TabletSerializer.kt

@@ -15,11 +15,6 @@ import org.vitrivr.cottontail.core.values.tablets.Tablet
  */
 interface TabletSerializer<T: Value> {
 
-    companion object {
-        /** The [LZ4Factory] instance used. */
-        val FACTORY: LZ4Factory = LZ4Factory.fastestInstance()
-    }
-
     /** The [Types] converted by this [TabletSerializer]. */
     val type: Types<T>