Package dev.vortex.jni

Class NativeArrayMethods

java.lang.Object
dev.vortex.jni.NativeArrayMethods
public final class NativeArrayMethods extends Object

  • Method Details

    • nbytes

      public static long nbytes(long pointer)

    • exportToArrow

      public static void exportToArrow(long pointer, long[] schemaPointer, long[] arrayPointer)

    • dropArrowSchema

      public static void dropArrowSchema(long arrowSchemaPtr)

    • dropArrowArray

      public static void dropArrowArray(long arrowArrayPtr)

    • free

      public static void free(long pointer)

    • getLen

      public static long getLen(long pointer)

    • getDataType

      public static long getDataType(long pointer)

    • getField

      public static long getField(long pointer, int index)

    • slice

      public static long slice(long pointer, int start, int stop)

    • getNull

      public static boolean getNull(long pointer, int index)

    • getNullCount

      public static int getNullCount(long pointer)

    • getByte

      public static byte getByte(long pointer, int index)

    • getShort

      public static short getShort(long pointer, int index)

    • getInt

      public static int getInt(long pointer, int index)

    • getLong

      public static long getLong(long pointer, int index)

    • getBool

      public static boolean getBool(long pointer, int index)

    • getFloat

      public static float getFloat(long pointer, int index)

    • getDouble

      public static double getDouble(long pointer, int index)

    • getBigDecimal

      public static BigDecimal getBigDecimal(long pointer, int index)

    • getUTF8

      public static String getUTF8(long pointer, int index)

    • getUTF8_ptr_len

      public static void getUTF8_ptr_len(long pointer, int index, long[] outPtr, int[] outLen)
      Raw-pointer variant of getUTF8(long, int) that accepts an array to hold a pointer and an output length.

      For Java query engines that use Unsafe to manipulate native memory, this allows working with the string inside of the JVM without copying it into Java heap memory.

    • getBinary

      public static byte[] getBinary(long pointer, int index)