release 0.2.6

Author: shuttie

build.sbt

@@ -2,7 +2,7 @@ import Deps._
 
 name := "ltrlib"
 
-version := "0.2.5"
+version := "0.2.6"
 
 scalaVersion := "2.13.14"
 

src/main/scala/io/github/metarank/ltrlib/booster/Booster.scala

@@ -5,13 +5,14 @@ import io.github.metarank.ltrlib.model.{Dataset, Model}
 import org.apache.commons.math3.linear.{Array2DRowRealMatrix, ArrayRealVector, RealMatrix, RealVector}
 
 trait Booster[D] extends Model {
-  protected var isClosed = false
+  protected var nativeLibIsClosed = false
   def save(): Array[Byte]
   def predictMat(values: Array[Double], rows: Int, cols: Int): Array[Double]
   def weights(): Array[Double]
   def close(): Unit
+  def isClosed(): Boolean = nativeLibIsClosed
 
-  def whenNotClosed[T](f: => T): T = if (!isClosed) f else throw new Exception("booster is already closed")
+  def whenNotClosed[T](f: => T): T = if (!nativeLibIsClosed) f else throw new Exception("booster is already closed")
 
   override def predict(values: RealMatrix): ArrayRealVector = {
     val rows = values.getRowDimension

src/main/scala/io/github/metarank/ltrlib/booster/LightGBMBooster.scala

@@ -16,7 +16,7 @@ case class LightGBMBooster(model: LGBMBooster) extends Booster[LGBMDataset] with
   }
 
   override def close(): Unit = whenNotClosed {
-    isClosed = true
+    nativeLibIsClosed = true
     model.close()
   }