Package org.snpsift.annotate.mem.dataFrame.dataFrameColumn

Class DataFrameColumn<T>

java.lang.Object
org.snpsift.annotate.mem.dataFrame.dataFrameColumn.DataFrameColumn<T>
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
DataFrameColumnBool, DataFrameColumnChar, DataFrameColumnDouble, DataFrameColumnInt, DataFrameColumnLong, DataFrameColumnString
public abstract class DataFrameColumn<T> extends Object implements Serializable
A wrapper for a data column of primitive type T A Data Column is a column of a specific data tyle (String, Float, Long, etc.) that is stored using primitive types for memory efficiency. The data that can be null, so we need to store a bit array to indicate which data is null.
See Also:

  • Field Details

    • MAX_NUMBER_OF_ELEMENTS_TO_SHOW

      public static final int MAX_NUMBER_OF_ELEMENTS_TO_SHOW
      See Also:

    • name

      protected String name

    • isNUllData

      protected BoolArray isNUllData

  • Constructor Details

    • DataFrameColumn

      public DataFrameColumn(String name, int size)

  • Method Details

    • check

      public void check()
      Check data consistency

    • getName

      public String getName()

    • isNull

      public boolean isNull(int i)
      Is the data at index i null?

    • get

      public T get(int i)
      Get value at index i, considering null data

    • getData

      protected abstract T getData(int i)

    • resize

      public void resize()
      Resize and memory optimize the data

    • set

      public void set(int i, Object value)
      Set value at index i, consideting null data

    • setData

      protected abstract void setData(int i, Object value)
      Set data at index i

    • size

      public abstract int size()
      Number of elements in this DataColumn

    • sizeBytes

      public abstract long sizeBytes()
      Memory size of this object (approximate size in bytes)

    • toString

      public String toString()
      Overrides:
      toString in class Object