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HDFNativeData (h5jan API)











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hdf.hdf5lib
Class HDFNativeData



java.lang.Object


hdf.hdf5lib.HDFNativeData









public class HDFNativeData
extends java.lang.Object
This class encapsulates native methods to deal with arrays of numbers,
 converting from numbers to bytes and bytes to numbers.
 
 These routines are used by class HDFArray to pass data to and from the
 HDF-5 library.
 

 Methods xxxToByte() convert a Java array of primitive numbers (int, short,
 ...) to a Java array of bytes. Methods byteToXxx() convert from a Java array
 of bytes into a Java array of primitive numbers (int, short, ...)
 

 Variant interfaces convert a section of an array, and also can convert to
 sub-classes of Java Number.
 

 See also: hdf.hdf5lib.HDFArray.











Constructor Summary

Constructors 

Constructor and Description


HDFNativeData() 









Method Summary

All Methods Static Methods Concrete Methods 

Modifier and Type
Method and Description


static byte[]
byteToByte(byte data)
Convert a single byte into an array of one byte.



static byte[]
byteToByte(java.lang.Byte data)
Convert a single Byte object into an array of one byte.



static double[]
byteToDouble(byte[] data)
Convert an array of bytes into an array of double



static double
byteToDouble(byte[] data,
            int start)
Convert 8 bytes from an array of bytes into a single double



static double[]
byteToDouble(int start,
            int len,
            byte[] data)
Convert a range from an array of bytes into an array of double



static float[]
byteToFloat(byte[] data)
Convert an array of bytes into an array of floats



static float
byteToFloat(byte[] data,
           int start)
Convert 4 bytes from an array of bytes into a single float



static float[]
byteToFloat(int start,
           int len,
           byte[] data)
Convert a range from an array of bytes into an array of float



static int[]
byteToInt(byte[] data)
Convert an array of bytes into an array of ints



static int
byteToInt(byte[] data,
         int start)
Convert 4 bytes from an array of bytes into a single int



static int[]
byteToInt(int start,
         int len,
         byte[] data)
Convert a range from an array of bytes into an array of int



static long[]
byteToLong(byte[] data)
Convert an array of bytes into an array of long



static long
byteToLong(byte[] data,
          int start)
Convert 8 bytes from an array of bytes into a single long



static long[]
byteToLong(int start,
          int len,
          byte[] data)
Convert a range from an array of bytes into an array of long



static java.lang.Object
byteToNumber(byte[] barray,
            java.lang.Object obj)
Create a Number object from an array of bytes.



static short[]
byteToShort(byte[] data)
Convert an array of bytes into an array of shorts



static short
byteToShort(byte[] data,
           int start)
Convert 2 bytes from an array of bytes into a single short



static short[]
byteToShort(int start,
           int len,
           byte[] data)
Convert a range from an array of bytes into an array of short



static byte[]
doubleToByte(double data)
Convert a single double into an array of 8 bytes.



static byte[]
doubleToByte(java.lang.Double data)
Convert a single Double object into an array of 8 bytes.



static byte[]
doubleToByte(int start,
            int len,
            double[] data)
Convert a range from an array of double into an array of bytes.



static byte[]
floatToByte(float data)
Convert a single float into an array of 4 bytes.



static byte[]
floatToByte(java.lang.Float data)
Convert a single Float object into an array of 4 bytes.



static byte[]
floatToByte(int start,
           int len,
           float[] data)
Convert a range from an array of float into an array of bytes.



static byte[]
intToByte(int data)
Convert a single int into an array of 4 bytes.



static byte[]
intToByte(java.lang.Integer data)
Convert a single Integer object into an array of 4 bytes.



static byte[]
intToByte(int start,
         int len,
         int[] data)
Convert a range from an array of int into an array of bytes.



static byte[]
longToByte(int start,
          int len,
          long[] data)
Convert a range from an array of long into an array of bytes.



static byte[]
longToByte(long data)
Convert a single long into an array of 8 bytes.



static byte[]
longToByte(java.lang.Long data)
Convert a single Long object into an array of 8 bytes.



static byte[]
shortToByte(int start,
           int len,
           short[] data)
Convert a range from an array of short into an array of bytes.



static byte[]
shortToByte(short data)
Convert a single short into an array of 2 bytes.



static byte[]
shortToByte(java.lang.Short data)
Convert a single Short object into an array of 2 bytes.







Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait














Constructor Detail





HDFNativeData
public HDFNativeData()









Method Detail





byteToInt
public static int[] byteToInt(byte[] data)
Convert an array of bytes into an array of ints

Parameters:
data - The input array of bytes
Returns:
an array of int








byteToFloat
public static float[] byteToFloat(byte[] data)
Convert an array of bytes into an array of floats

Parameters:
data - The input array of bytes
Returns:
an array of float








byteToShort
public static short[] byteToShort(byte[] data)
Convert an array of bytes into an array of shorts

Parameters:
data - The input array of bytes
Returns:
an array of short








byteToLong
public static long[] byteToLong(byte[] data)
Convert an array of bytes into an array of long

Parameters:
data - The input array of bytes
Returns:
an array of long








byteToDouble
public static double[] byteToDouble(byte[] data)
Convert an array of bytes into an array of double

Parameters:
data - The input array of bytes
Returns:
an array of double








byteToInt
public static int[] byteToInt(int start,
                              int len,
                              byte[] data)
Convert a range from an array of bytes into an array of int

Parameters:
start - The position in the input array of bytes to start
len - The number of 'int' to convert
data - The input array of bytes
Returns:
an array of 'len' int








byteToInt
public static int byteToInt(byte[] data,
                            int start)
Convert 4 bytes from an array of bytes into a single int

Parameters:
start - The position in the input array of bytes to start
data - The input array of bytes
Returns:
The integer value of the bytes.








byteToShort
public static short[] byteToShort(int start,
                                  int len,
                                  byte[] data)
Convert a range from an array of bytes into an array of short

Parameters:
start - The position in the input array of bytes to start
len - The number of 'short' to convert
data - The input array of bytes
Returns:
an array of 'len' short








byteToShort
public static short byteToShort(byte[] data,
                                int start)
Convert 2 bytes from an array of bytes into a single short

Parameters:
start - The position in the input array of bytes to start
data - The input array of bytes
Returns:
The short value of the bytes.








byteToFloat
public static float[] byteToFloat(int start,
                                  int len,
                                  byte[] data)
Convert a range from an array of bytes into an array of float

Parameters:
start - The position in the input array of bytes to start
len - The number of 'float' to convert
data - The input array of bytes
Returns:
an array of 'len' float








byteToFloat
public static float byteToFloat(byte[] data,
                                int start)
Convert 4 bytes from an array of bytes into a single float

Parameters:
start - The position in the input array of bytes to start
data - The input array of bytes
Returns:
The float value of the bytes.








byteToLong
public static long[] byteToLong(int start,
                                int len,
                                byte[] data)
Convert a range from an array of bytes into an array of long

Parameters:
start - The position in the input array of bytes to start
len - The number of 'long' to convert
data - The input array of bytes
Returns:
an array of 'len' long








byteToLong
public static long byteToLong(byte[] data,
                              int start)
Convert 8 bytes from an array of bytes into a single long

Parameters:
start - The position in the input array of bytes to start
data - The input array of bytes
Returns:
The long value of the bytes.








byteToDouble
public static double[] byteToDouble(int start,
                                    int len,
                                    byte[] data)
Convert a range from an array of bytes into an array of double

Parameters:
start - The position in the input array of bytes to start
len - The number of 'double' to convert
data - The input array of bytes
Returns:
an array of 'len' double








byteToDouble
public static double byteToDouble(byte[] data,
                                  int start)
Convert 8 bytes from an array of bytes into a single double

Parameters:
start - The position in the input array of bytes to start
data - The input array of bytes
Returns:
The double value of the bytes.








intToByte
public static byte[] intToByte(int start,
                               int len,
                               int[] data)
Convert a range from an array of int into an array of bytes.

Parameters:
start - The position in the input array of int to start
len - The number of 'int' to convert
data - The input array of int
Returns:
an array of bytes








shortToByte
public static byte[] shortToByte(int start,
                                 int len,
                                 short[] data)
Convert a range from an array of short into an array of bytes.

Parameters:
start - The position in the input array of int to start
len - The number of 'short' to convert
data - The input array of short
Returns:
an array of bytes








floatToByte
public static byte[] floatToByte(int start,
                                 int len,
                                 float[] data)
Convert a range from an array of float into an array of bytes.

Parameters:
start - The position in the input array of int to start
len - The number of 'float' to convert
data - The input array of float
Returns:
an array of bytes








longToByte
public static byte[] longToByte(int start,
                                int len,
                                long[] data)
Convert a range from an array of long into an array of bytes.

Parameters:
start - The position in the input array of int to start
len - The number of 'long' to convert
data - The input array of long
Returns:
an array of bytes








doubleToByte
public static byte[] doubleToByte(int start,
                                  int len,
                                  double[] data)
Convert a range from an array of double into an array of bytes.

Parameters:
start - The position in the input array of double to start
len - The number of 'double' to convert
data - The input array of double
Returns:
an array of bytes








byteToByte
public static byte[] byteToByte(byte data)
Convert a single byte into an array of one byte.
 
 (This is a trivial method.)

Parameters:
data - The input byte
Returns:
an array of bytes








byteToByte
public static byte[] byteToByte(java.lang.Byte data)
Convert a single Byte object into an array of one byte.
 
 (This is an almost trivial method.)

Parameters:
data - The input Byte
Returns:
an array of bytes








intToByte
public static byte[] intToByte(int data)
Convert a single int into an array of 4 bytes.

Parameters:
data - The input int
Returns:
an array of bytes








intToByte
public static byte[] intToByte(java.lang.Integer data)
Convert a single Integer object into an array of 4 bytes.

Parameters:
data - The input Integer
Returns:
an array of bytes








shortToByte
public static byte[] shortToByte(short data)
Convert a single short into an array of 2 bytes.

Parameters:
data - The input short
Returns:
an array of bytes








shortToByte
public static byte[] shortToByte(java.lang.Short data)
Convert a single Short object into an array of 2 bytes.

Parameters:
data - The input Short
Returns:
an array of bytes








floatToByte
public static byte[] floatToByte(float data)
Convert a single float into an array of 4 bytes.

Parameters:
data - The input float
Returns:
an array of bytes








floatToByte
public static byte[] floatToByte(java.lang.Float data)
Convert a single Float object into an array of 4 bytes.

Parameters:
data - The input Float
Returns:
an array of bytes








longToByte
public static byte[] longToByte(long data)
Convert a single long into an array of 8 bytes.

Parameters:
data - The input long
Returns:
an array of bytes








longToByte
public static byte[] longToByte(java.lang.Long data)
Convert a single Long object into an array of 8 bytes.

Parameters:
data - The input Long
Returns:
an array of bytes








doubleToByte
public static byte[] doubleToByte(double data)
Convert a single double into an array of 8 bytes.

Parameters:
data - The input double
Returns:
an array of bytes








doubleToByte
public static byte[] doubleToByte(java.lang.Double data)
Convert a single Double object into an array of 8 bytes.

Parameters:
data - The input Double
Returns:
an array of bytes








byteToNumber
public static java.lang.Object byteToNumber(byte[] barray,
                                            java.lang.Object obj)
                                     throws HDF5Exception
Create a Number object from an array of bytes.

Parameters:
barray - The bytes to be converted
obj - Input object of the desired output class. Must be a sub-class
            of Number.
Returns:
A Object of the type of obj.
Throws:
HDF5Exception - - Error unsupported type.














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Summary: 
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Detail: 
Field | 
Constr | 
Method

Modifier and Type	Method and Description
`static byte[]`	`byteToByte(byte data)` Convert a single byte into an array of one byte.
`static byte[]`	`byteToByte(java.lang.Byte data)` Convert a single Byte object into an array of one byte.
`static double[]`	`byteToDouble(byte[] data)` Convert an array of bytes into an array of double
`static double`	`byteToDouble(byte[] data, int start)` Convert 8 bytes from an array of bytes into a single double
`static double[]`	`byteToDouble(int start, int len, byte[] data)` Convert a range from an array of bytes into an array of double
`static float[]`	`byteToFloat(byte[] data)` Convert an array of bytes into an array of floats
`static float`	`byteToFloat(byte[] data, int start)` Convert 4 bytes from an array of bytes into a single float
`static float[]`	`byteToFloat(int start, int len, byte[] data)` Convert a range from an array of bytes into an array of float
`static int[]`	`byteToInt(byte[] data)` Convert an array of bytes into an array of ints
`static int`	`byteToInt(byte[] data, int start)` Convert 4 bytes from an array of bytes into a single int
`static int[]`	`byteToInt(int start, int len, byte[] data)` Convert a range from an array of bytes into an array of int
`static long[]`	`byteToLong(byte[] data)` Convert an array of bytes into an array of long
`static long`	`byteToLong(byte[] data, int start)` Convert 8 bytes from an array of bytes into a single long
`static long[]`	`byteToLong(int start, int len, byte[] data)` Convert a range from an array of bytes into an array of long
`static java.lang.Object`	`byteToNumber(byte[] barray, java.lang.Object obj)` Create a Number object from an array of bytes.
`static short[]`	`byteToShort(byte[] data)` Convert an array of bytes into an array of shorts
`static short`	`byteToShort(byte[] data, int start)` Convert 2 bytes from an array of bytes into a single short
`static short[]`	`byteToShort(int start, int len, byte[] data)` Convert a range from an array of bytes into an array of short
`static byte[]`	`doubleToByte(double data)` Convert a single double into an array of 8 bytes.
`static byte[]`	`doubleToByte(java.lang.Double data)` Convert a single Double object into an array of 8 bytes.
`static byte[]`	`doubleToByte(int start, int len, double[] data)` Convert a range from an array of double into an array of bytes.
`static byte[]`	`floatToByte(float data)` Convert a single float into an array of 4 bytes.
`static byte[]`	`floatToByte(java.lang.Float data)` Convert a single Float object into an array of 4 bytes.
`static byte[]`	`floatToByte(int start, int len, float[] data)` Convert a range from an array of float into an array of bytes.
`static byte[]`	`intToByte(int data)` Convert a single int into an array of 4 bytes.
`static byte[]`	`intToByte(java.lang.Integer data)` Convert a single Integer object into an array of 4 bytes.
`static byte[]`	`intToByte(int start, int len, int[] data)` Convert a range from an array of int into an array of bytes.
`static byte[]`	`longToByte(int start, int len, long[] data)` Convert a range from an array of long into an array of bytes.
`static byte[]`	`longToByte(long data)` Convert a single long into an array of 8 bytes.
`static byte[]`	`longToByte(java.lang.Long data)` Convert a single Long object into an array of 8 bytes.
`static byte[]`	`shortToByte(int start, int len, short[] data)` Convert a range from an array of short into an array of bytes.
`static byte[]`	`shortToByte(short data)` Convert a single short into an array of 2 bytes.
`static byte[]`	`shortToByte(java.lang.Short data)` Convert a single Short object into an array of 2 bytes.