Package org.apache.sysds.runtime.frame.data.columns

Interface ArrayFactory

public interface ArrayFactory

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	ArrayFactory.FrameArrayType

Field Summary

Fields

Modifier and Type	Field	Description
static int	bitSetSwitchPoint

Method Summary

Static Methods

Modifier and Type	Method	Description
static Array<?>	allocate(Types.ValueType v, int nRow)
static Array<?>	allocate(Types.ValueType v, int nRow, String val)
static ABooleanArray	allocateBoolean(int nRow)
static Array<?>	allocateOptional(Types.ValueType v, int nRow)
static <C> Array<C>	append(Array<?> a, Array<?> b)	append arrays to each other, and cast to highest common type if different types.
static BooleanArray	create(boolean[] col)
static CharArray	create(char[] col)
static DoubleArray	create(double[] col)
static FloatArray	create(float[] col)
static IntegerArray	create(int[] col)
static LongArray	create(long[] col)
static StringArray	create(String[] col)
static BitSetArray	create(BitSet col, int size)
static <T> OptionalArray<T>	create(T[] col)
static Object	defaultNullValue(Types.ValueType v)
static long	getInMemorySize(Types.ValueType type, int _numRows)
static Object	parseString(String s, Types.ValueType v)
static Array<?>	read(DataInput in, int nRow)
static <C> Array<C>	set(Array<?> target, Array<?> src, int rl, int ru, int rlen)	Set the target array in the range of rl to ru with the src array.

Field Detail

bitSetSwitchPoint

static final int bitSetSwitchPoint

See Also:

Constant Field Values

Method Detail

create

static StringArray create(String[] col)

create

static BooleanArray create(boolean[] col)

create

static BitSetArray create(BitSet col,
                          int size)

create

static IntegerArray create(int[] col)

create

static LongArray create(long[] col)

create

static FloatArray create(float[] col)

create

static DoubleArray create(double[] col)

create

static CharArray create(char[] col)

create

static <T> OptionalArray<T> create(T[] col)

getInMemorySize

static long getInMemorySize(Types.ValueType type,
                            int _numRows)

allocate

static Array<?> allocate(Types.ValueType v,
                         int nRow,
                         String val)

allocateOptional

static Array<?> allocateOptional(Types.ValueType v,
                                 int nRow)

allocateBoolean

static ABooleanArray allocateBoolean(int nRow)

allocate

static Array<?> allocate(Types.ValueType v,
                         int nRow)

read

static Array<?> read(DataInput in,
                     int nRow)
              throws IOException

Throws:

IOException

append

static <C> Array<C> append(Array<?> a,
                           Array<?> b)

append arrays to each other, and cast to highest common type if different types.

Type Parameters:

C - The type to return, java automatically make this Object, and this is fine.

Parameters:

a - The first array to append to (potentially modifying this a if applicable)

b - THe array to append to a, (not getting modified).

Returns:

A array containing the concatenation of the two.

set

static <C> Array<C> set(Array<?> target,
                        Array<?> src,
                        int rl,
                        int ru,
                        int rlen)

Set the target array in the range of rl to ru with the src array. The type returned is the common or highest common type of array.

Type Parameters:

C - THe highest common type to return.

Parameters:

target - The target to pout the values into

src - The source to take the values from

rl - The index to start on

ru - The index to end on

rlen - The length of the target (a parameter in case target is null)

Returns:

A new or modified array.

parseString

static Object parseString(String s,
                          Types.ValueType v)

defaultNullValue

static Object defaultNullValue(Types.ValueType v)