Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://angel.cs.msu.su/projects/system/toolsdoc/netcdf_java/ucar/multiarray/AbstractAccessor.html
Дата изменения: Tue Dec 28 20:59:06 2004 Дата индексирования: Sun Apr 10 00:18:00 2016 Кодировка: |
|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--ucar.multiarray.AbstractAccessor
This abstract class provides a skeletal implementation of the Accessor interface.
A minimal concrete implementation
would provide concrete implementations
Object get(int [] index)
,
Object copyout(int [] origin, int [] shape)
,
set(int [] index, Object value)
.
copyin(int [] index, MultiArray value)
.
Accessor
Constructor Summary | |
AbstractAccessor()
|
Method Summary | |
static void |
copy(Accessor src,
int[] src_limits,
Accessor dst,
int[] dst_pos)
Used to implement copyin. |
void |
copyin(int[] origin,
MultiArray data)
You almost always want to override this |
static void |
copyO(Accessor src,
int[] src_pos,
Accessor dst,
int[] dst_limits)
Used to implement copyout. |
abstract MultiArray |
copyout(int[] origin,
int[] shape)
Aggregate read access. |
abstract java.lang.Object |
get(int[] index)
Get (read) the array element at index. |
boolean |
getBoolean(int[] index)
Get the array element at index, as a boolean. |
byte |
getByte(int[] index)
Get the array element at index, as a byte. |
char |
getChar(int[] index)
Get the array element at index, as a char. |
double |
getDouble(int[] index)
Get the array element at index, as a double. |
float |
getFloat(int[] index)
Get the array element at index, as a float. |
int |
getInt(int[] index)
Get the array element at index, as an int. |
long |
getLong(int[] index)
Get the array element at index, as a long. |
short |
getShort(int[] index)
Get the array element at index, as a short. |
abstract void |
set(int[] index,
java.lang.Object value)
Set (modify, write) the array element at index to the specified value. |
void |
setBoolean(int[] index,
boolean value)
Set the array element at index to the specified boolean value. |
void |
setByte(int[] index,
byte value)
Set the array element at index to the specified byte value. |
void |
setChar(int[] index,
char value)
Set the array element at index to the specified char value. |
void |
setDouble(int[] index,
double value)
Set the array element at index to the specified double value. |
void |
setFloat(int[] index,
float value)
Set the array element at index to the specified float value. |
void |
setInt(int[] index,
int value)
Set the array element at index to the specified int value. |
void |
setLong(int[] index,
long value)
Set the array element at index to the specified long value. |
void |
setShort(int[] index,
short value)
Set the array element at index to the specified short value. |
abstract java.lang.Object |
toArray()
Returns a new array containing all of the elements in this MultiArray. |
abstract java.lang.Object |
toArray(java.lang.Object dst,
int[] origin,
int[] shape)
Returns an array containing elements of this MultiArray specified by origin and shape, possibly converting the component type. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public AbstractAccessor()
Method Detail |
public static void copy(Accessor src, int[] src_limits, Accessor dst, int[] dst_pos) throws java.io.IOException
src
- the data sourcesrc_limits
- limits on the source IndexIterator
typically < ((MultiArray)src).getLengths()dst
- the destination, values here are modifieddst_pos
- starting position in the data sourcepublic static void copyO(Accessor src, int[] src_pos, Accessor dst, int[] dst_limits) throws java.io.IOException
src
- the data sourcesrc_pos
- starting position in the data sourcedst
- the destination, values here are modifieddst_limits
- limits on the source IndexIterator
typically < ((MultiArray)dst).getLengths()public abstract java.lang.Object get(int[] index) throws java.io.IOException
Accessor
get
in interface Accessor
ucar.multiarray.Accessor
index
- MultiArray indexindex
NullPointerException
- If the argument is null.java.lang.IllegalArgumentException
- If the array length of index is
too smalljava.lang.ArrayIndexOutOfBoundsException
- If an index component
argument is negative, or if it is greater than or equal to the
corresponding dimension length.public boolean getBoolean(int[] index) throws java.io.IOException
Accessor
getBoolean
in interface Accessor
ucar.multiarray.Accessor
Accessor.get(int[])
public char getChar(int[] index) throws java.io.IOException
Accessor
getChar
in interface Accessor
ucar.multiarray.Accessor
Accessor.get(int[])
public byte getByte(int[] index) throws java.io.IOException
Accessor
getByte
in interface Accessor
ucar.multiarray.Accessor
Accessor.get(int[])
public short getShort(int[] index) throws java.io.IOException
Accessor
getShort
in interface Accessor
ucar.multiarray.Accessor
Accessor.get(int[])
public int getInt(int[] index) throws java.io.IOException
Accessor
getInt
in interface Accessor
ucar.multiarray.Accessor
Accessor.get(int[])
public long getLong(int[] index) throws java.io.IOException
Accessor
getLong
in interface Accessor
ucar.multiarray.Accessor
Accessor.get(int[])
public float getFloat(int[] index) throws java.io.IOException
Accessor
getFloat
in interface Accessor
ucar.multiarray.Accessor
Accessor.get(int[])
public double getDouble(int[] index) throws java.io.IOException
Accessor
getDouble
in interface Accessor
ucar.multiarray.Accessor
Accessor.get(int[])
public abstract void set(int[] index, java.lang.Object value) throws java.io.IOException
Accessor
set
in interface Accessor
ucar.multiarray.Accessor
index
- MultiArray indexvalue
- the new value.NullPointerException
- If the index argument is null, or
if the array has a primitive component type and the value argument is
nulljava.lang.IllegalArgumentException
- If the array length of index is
too smalljava.lang.ArrayIndexOutOfBoundsException
- If an index component
argument is negative, or if it is greater than or equal to the
corresponding dimension length.public void setBoolean(int[] index, boolean value) throws java.io.IOException
Accessor
setBoolean
in interface Accessor
ucar.multiarray.Accessor
Accessor.set(int[], java.lang.Object)
public void setChar(int[] index, char value) throws java.io.IOException
Accessor
setChar
in interface Accessor
ucar.multiarray.Accessor
Accessor.set(int[], java.lang.Object)
public void setByte(int[] index, byte value) throws java.io.IOException
Accessor
setByte
in interface Accessor
ucar.multiarray.Accessor
Accessor.set(int[], java.lang.Object)
public void setShort(int[] index, short value) throws java.io.IOException
Accessor
setShort
in interface Accessor
ucar.multiarray.Accessor
Accessor.set(int[], java.lang.Object)
public void setInt(int[] index, int value) throws java.io.IOException
Accessor
setInt
in interface Accessor
ucar.multiarray.Accessor
Accessor.set(int[], java.lang.Object)
public void setLong(int[] index, long value) throws java.io.IOException
Accessor
setLong
in interface Accessor
ucar.multiarray.Accessor
Accessor.set(int[], java.lang.Object)
public void setFloat(int[] index, float value) throws java.io.IOException
Accessor
setFloat
in interface Accessor
ucar.multiarray.Accessor
Accessor.set(int[], java.lang.Object)
public void setDouble(int[] index, double value) throws java.io.IOException
Accessor
setDouble
in interface Accessor
ucar.multiarray.Accessor
Accessor.set(int[], java.lang.Object)
public abstract MultiArray copyout(int[] origin, int[] shape) throws java.io.IOException
Accessor
It is easier to implement than to specify :-).
The main reason to implement this instead of using the equivalent proxy is for remote or file access.
assert(origin[ii] + shape[ii] <= lengths[ii]);
copyout
in interface Accessor
ucar.multiarray.Accessor
origin
- int array specifying the starting index.shape
- int array specifying the extents in each
dimension. This becomes the shape of the return.public void copyin(int[] origin, MultiArray data) throws java.io.IOException
copyin
in interface Accessor
ucar.multiarray.Accessor
origin
- int array specifying the starting index.source
- MultiArray with the same componentType as
this and shape smaller than
this.getLengths() - origin
public abstract java.lang.Object toArray() throws java.io.IOException
Accessor
This method acts as bridge between array-based and MultiArray-based APIs.
This method is functionally equivalent to
Object anArray = Array.newInstance(getComponentType(), 1); int [] origin = new int[getRank()] int [] shape = getDimensions(); return toArray(anArray, origin, shape);
toArray
in interface Accessor
ucar.multiarray.Accessor
public abstract java.lang.Object toArray(java.lang.Object dst, int[] origin, int[] shape) throws java.io.IOException
Accessor
The anArray argument should be an array. If it is large enough to contain the output, it is used and no new storage is allocated. Otherwise, new storage is allocated with the same component type as the argument, and the data is copied into it.
This method acts as bridge between array-based and MultiArray-based APIs.
This method is similar to copyout(origin, shape).toArray(), but avoids a copy operation and (potentially) an allocation.
NOTE: Implementation of type conversion is deferred until
JDK 1.2. Currently, the componentType of anArray
must be the same as this
toArray
in interface Accessor
ucar.multiarray.Accessor
|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |