CLASS ndi.database.implementations.binarydoc.matfid

  ndi.database.implementations.binarydoc.matfid - create a new ndi.database.implementations.binarydoc.matfid object

  NDI_BINARYDOC_MATFID_OBJ = ndi.database.implementations.binarydoc.matfid(PARAM1,VALUE1, ...)

  Follows same arguments as vlt.file.fileobj

  See also: vlt.file.fileobj, vlt.file.fileobj/FILEOBJ

Superclasses

ndi.database.binarydoc, handle, vlt.file.fileobj

Properties

Property	Description
key	The key that is created when the binary doc is locked
doc_unique_id	The document unique id
fullpathfilename
fid
permission
machineformat

Methods

Method	Description
addlistener	ADDLISTENER Add listener for event.
delete	close an ndi.database.binarydoc and delete its handle
eq	== (EQ) Test handle equality.
fclose	close an ndi.database.implementations.binarydoc.matfid object
feof	test to see if a FILEOBJ is at END-OF-FILE
ferror	return the last file error message for FILEOBJ
fgetl	get a line from a FILEOBJ
fgets	get a line from a FILEOBJ
fileparts	return filename parts for the file associated with FILEOBJ
findobj	FINDOBJ Find objects matching specified conditions.
findprop	FINDPROP Find property of MATLAB handle object.
fopen	open a FILEOBJ
fprintf	print data to a FILEOBJ_OBJ
fread	read data from a FILEOBJ
frewind	'rewind' a FILEOBJ back to the beginning
fscanf	scan data from a FILEOBJ_OBJ
fseek	seek to a location within a FILEOBJ
ftell	find current location within a FILEOBJ
fwrite	write data to a FILEOBJ
ge	>= (GE) Greater than or equal relation for handles.
gt	> (GT) Greater than relation for handles.
isvalid	ISVALID Test handle validity.
le	<= (LE) Less than or equal relation for handles.
listener	LISTENER Add listener for event without binding the listener to the source object.
lt	< (LT) Less than relation for handles.
matfid	create a new ndi.database.implementations.binarydoc.matfid object
ne	~= (NE) Not equal relation for handles.
notify	NOTIFY Notify listeners of event.
setproperties	set the properties of a FILEOBJ

Methods help

addlistener - ADDLISTENER Add listener for event.

el = ADDLISTENER(hSource, Eventname, callbackFcn) creates a listener
    for the event named Eventname.  The source of the event is the handle 
    object hSource.  If hSource is an array of source handles, the listener
    responds to the named event on any handle in the array.  callbackFcn
    is a function handle that is invoked when the event is triggered.

    el = ADDLISTENER(hSource, PropName, Eventname, Callback) adds a 
    listener for a property event.  Eventname must be one of
    'PreGet', 'PostGet', 'PreSet', or 'PostSet'. Eventname can be
    a string scalar or character vector.  PropName must be a single 
    property name specified as string scalar or character vector, or a 
    collection of property names specified as a cell array of character 
    vectors or a string array, or as an array of one or more 
    meta.property objects.  The properties must belong to the class of 
    hSource.  If hSource is scalar, PropName can include dynamic 
    properties.

    For all forms, addlistener returns an event.listener.  To remove a
    listener, delete the object returned by addlistener.  For example,
    delete(el) calls the handle class delete method to remove the listener
    and delete it from the workspace.

    ADDLISTENER binds the listener's lifecycle to the object that is the 
    source of the event.  Unless you explicitly delete the listener, it is
    destroyed only when the source object is destroyed.  To control the
    lifecycle of the listener independently from the event source object, 
    use listener or the event.listener constructor to create the listener.

    See also LISTENER, EVENT.LISTENER, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID, NOTIFY, DELETE, META.PROPERTY, EVENTS

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delete - close an ndi.database.binarydoc and delete its handle

DELETE(NDI_BINARYDOC_OBJ)

  Closes an ndi.database.binarydoc (if necessary) and then deletes the handle.

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eq - == (EQ) Test handle equality.

Handles are equal if they are handles for the same object.

    H1 == H2 performs element-wise comparisons between handle arrays H1 and
    H2.  H1 and H2 must be of the same dimensions unless one is a scalar.
    The result is a logical array of the same dimensions, where each
    element is an element-wise equality result.

    If one of H1 or H2 is scalar, scalar expansion is performed and the 
    result will match the dimensions of the array that is not scalar.

    TF = EQ(H1, H2) stores the result in a logical array of the same 
    dimensions.

    See also NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/GE, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/GT, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/LE, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/LT, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/NE

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fclose - close an ndi.database.implementations.binarydoc.matfid object

Closes the file, but also clears the fullpathfilename and other fields so the 
  user cannot re-use the object without checking out another binary document from
  the database.

---

feof - test to see if a FILEOBJ is at END-OF-FILE

B = FEOF(FILEOBJ_OBJ)

  Returns 1 if FILEOBJ_OBJ is at its end of file, 0 otherwise.

  See also: FSEEK, FILEOBJ/FSEEK, FTELL

Help for ndi.database.implementations.binarydoc.matfid/feof is inherited from superclass vlt.file.fileobj

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ferror - return the last file error message for FILEOBJ

[MESSAGE, ERRORNUM] = FERROR(FILEOBJ_OBJ, COMMAND)

  Return the most recent file error MESSAGE and ERRORNUM for
  the file associated with FERROR.

Help for ndi.database.implementations.binarydoc.matfid/ferror is inherited from superclass vlt.file.fileobj

---

fgetl - get a line from a FILEOBJ

TLINE = FGETL(FILEOBJ_OBJ)

  Returns the next line (not including NEWLINE character) just like FGETL.

  See also: FGETL

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fgets - get a line from a FILEOBJ

TLINE = FGETS(FILEOBJ_OBJ, [NCHAR])

  Returns the next line (including NEWLINE character) just like FGETS.

  See also: FGETS

Help for ndi.database.implementations.binarydoc.matfid/fgets is inherited from superclass vlt.file.fileobj

---

fileparts - return filename parts for the file associated with FILEOBJ

[PATHSTR,NAME,EXT] = FILEPARTS(FILEOBJ_OBJ)

  Returns FILEPARTS of the 'fullpathfilename' field of FILEOBJ.

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findobj - FINDOBJ Find objects matching specified conditions.

The FINDOBJ method of the HANDLE class follows the same syntax as the 
    MATLAB FINDOBJ command, except that the first argument must be an array
    of handles to objects.

    HM = FINDOBJ(H, <conditions>) searches the handle object array H and 
    returns an array of handle objects matching the specified conditions.
    Only the public members of the objects of H are considered when 
    evaluating the conditions.

    See also FINDOBJ, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID

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findprop - FINDPROP Find property of MATLAB handle object.

p = FINDPROP(H,PROPNAME) finds and returns the META.PROPERTY object
    associated with property name PROPNAME of scalar handle object H.
    PROPNAME can be a string scalar or character vector.  It can be the 
    name of a property defined by the class of H or a dynamic property 
    added to scalar object H.

    If no property named PROPNAME exists for object H, an empty 
    META.PROPERTY array is returned.

    See also NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/FINDOBJ, DYNAMICPROPS, META.PROPERTY

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---

fopen - open a FILEOBJ

FILEOBJ_OBJ = FOPEN(FILEOBJ_OBJ, [ , PERMISSION], [MACHINEFORMAT],[FILENAME])

  Opens the file associated with a FILEOBJ_OBJ object. If FILENAME, PERMISSION, 
  and MACHINEFORMAT are given, then those variables of FILEOBJ_OBJ are updated. If they
  are not given, then the existing values in the FILEOBJ_OBJ are used.

  Note that the order of the input arguments differs from FOPEN, so that the object
  can be called in place of an FID (e.g., fid=fopen(myvariable), where myvariable is
  either a file name or a FILEOBJ object).

  If the operation is successful, then FILEOBJ_OBJ.fid is greater than 3. Otherwise,
  FILEOBJ_OBJ.fid is -1.

  See also: FOPEN, FILEOBJ/FCLOSE, FCLOSE

Help for ndi.database.implementations.binarydoc.matfid/fopen is inherited from superclass vlt.file.fileobj

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fprintf - print data to a FILEOBJ_OBJ

[COUNT] = FPRINTF(FID,FORMAT,A, ...)

  Call FPRINTF (see FPRINTF for inputs) for the file associated with
  FILEOBJ_OBJ.

Help for ndi.database.implementations.binarydoc.matfid/fprintf is inherited from superclass vlt.file.fileobj

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fread - read data from a FILEOBJ

COUNT = FWRITE(FILEOBJ_OBJ, COUNT, [PRECISION], [SKIP], [MACHINEFORMAT])

  Attempts to read COUNT elements with resolution PRECISION. If PRECISION is not 
  provided, then 'char' is assumed. If SKIP is provided, then SKIP is in number of bytes, unless
  PRECISION is in bits, in which case SKIP is in bits. MACHINEFORMAT is the machine format to use.

  See FREAD for a full description of these input arguments.

  See also: FREAD

Help for ndi.database.implementations.binarydoc.matfid/fread is inherited from superclass vlt.file.fileobj

---

frewind - 'rewind' a FILEOBJ back to the beginning

FREWIND(FILEOBJ_OBJ)

  Seeks to the beginning of the file.

  See also: FSEEK, FILEOBJ/FSEEK, FTELL

Help for ndi.database.implementations.binarydoc.matfid/frewind is inherited from superclass vlt.file.fileobj

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fscanf - scan data from a FILEOBJ_OBJ

[A,COUNT] = FSCANF(FID,FORMAT,[SIZEA])

  Call FSCANF (see FSCANF for inputs) for the file associated with
  FILEOBJ_OBJ.

Help for ndi.database.implementations.binarydoc.matfid/fscanf is inherited from superclass vlt.file.fileobj

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fseek - seek to a location within a FILEOBJ

B = FSEEK(FILEOBJ_OBJ, OFFSET, REFERENCE)

  Seeks the file to the location OFFSET (in bytes) relative to
  REFERENCE. REFERENCE can be 
      'bof' or -1   Beginning of file
      'cof' or  0   Current position in file
      'eof' or  1   End of file

  B is 0 on success and -1 on failure.

  See also: FSEEK, FILEOBJ/FTELL

Help for ndi.database.implementations.binarydoc.matfid/fseek is inherited from superclass vlt.file.fileobj

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ftell - find current location within a FILEOBJ

LOCATION = FTELL(FILEOBJ_OBJ)

  Returns the current location (in bytes) relative to the beginning of the
  file. If the query fails, -1 is returned.

  See also: FSEEK, FILEOBJ/FSEEK, FTELL

Help for ndi.database.implementations.binarydoc.matfid/ftell is inherited from superclass vlt.file.fileobj

---

fwrite - write data to a FILEOBJ

COUNT = FWRITE(FILEOBJ_OBJ, DATA, [PRECISION], [SKIP], [MACHINEFORMAT])

  Attempts to write DATA elements with resolution PRECISION. If PRECISION is not 
  provided, then 'char' is assumed. If SKIP is provided, then SKIP is in number of bytes, unless
  PRECISION is in bits, in which case SKIP is in bits. MACHINEFORMAT is the machine format to use.

  See FWRITE for a full description of these input arguments.

  See also: FWRITE

Help for ndi.database.implementations.binarydoc.matfid/fwrite is inherited from superclass vlt.file.fileobj

---

ge - >= (GE) Greater than or equal relation for handles.

H1 >= H2 performs element-wise comparisons between handle arrays H1 and
    H2.  H1 and H2 must be of the same dimensions unless one is a scalar.
    The result is a logical array of the same dimensions, where each
    element is an element-wise >= result.

    If one of H1 or H2 is scalar, scalar expansion is performed and the 
    result will match the dimensions of the array that is not scalar.

    TF = GE(H1, H2) stores the result in a logical array of the same 
    dimensions.

    See also NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/EQ, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/GT, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/LE, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/LT, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/NE

Help for ndi.database.implementations.binarydoc.matfid/ge is inherited from superclass handle

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gt - > (GT) Greater than relation for handles.

H1 > H2 performs element-wise comparisons between handle arrays H1 and 
    H2.  H1 and H2 must be of the same dimensions unless one is a scalar.  
    The result is a logical array of the same dimensions, where each
    element is an element-wise > result.

    If one of H1 or H2 is scalar, scalar expansion is performed and the 
    result will match the dimensions of the array that is not scalar.

    TF = GT(H1, H2) stores the result in a logical array of the same 
    dimensions.

    See also NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/EQ, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/GE, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/LE, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/LT, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/NE

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isvalid - ISVALID Test handle validity.

TF = ISVALID(H) performs an element-wise check for validity on the 
    handle elements of H.  The result is a logical array of the same 
    dimensions as H, where each element is the element-wise validity 
    result.

    A handle is invalid if it has been deleted or if it is an element
    of a handle array and has not yet been initialized.

    See also NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/DELETE

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le - <= (LE) Less than or equal relation for handles.

Handles are equal if they are handles for the same object.  All 
    comparisons use a number associated with each handle object.  Nothing
    can be assumed about the result of a handle comparison except that the
    repeated comparison of two handles in the same MATLAB session will 
    yield the same result.  The order of handle values is purely arbitrary 
    and has no connection to the state of the handle objects being 
    compared.

    H1 <= H2 performs element-wise comparisons between handle arrays H1 and
    H2.  H1 and H2 must be of the same dimensions unless one is a scalar.
    The result is a logical array of the same dimensions, where each
    element is an element-wise >= result.

    If one of H1 or H2 is scalar, scalar expansion is performed and the 
    result will match the dimensions of the array that is not scalar.

    TF = LE(H1, H2) stores the result in a logical array of the same 
    dimensions.

    See also NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/EQ, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/GE, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/GT, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/LT, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/NE

Help for ndi.database.implementations.binarydoc.matfid/le is inherited from superclass handle

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listener - LISTENER Add listener for event without binding the listener to the source object.

el = LISTENER(hSource, Eventname, callbackFcn) creates a listener
    for the event named Eventname.  The source of the event is the handle  
    object hSource.  If hSource is an array of source handles, the listener
    responds to the named event on any handle in the array.  callbackFcn
    is a function handle that is invoked when the event is triggered.

    el = LISTENER(hSource, PropName, Eventname, callback) adds a 
    listener for a property event.  Eventname must be one of  
    'PreGet', 'PostGet', 'PreSet', or 'PostSet'. Eventname can be a 
    string sclar or character vector.  PropName must be either a single 
    property name specified as a string scalar or character vector, or 
    a collection of property names specified as a cell array of character 
    vectors or a string array, or as an array of one ore more 
    meta.property objects. The properties must belong to the class of 
    hSource.  If hSource is scalar, PropName can include dynamic 
    properties.

    For all forms, listener returns an event.listener.  To remove a
    listener, delete the object returned by listener.  For example,
    delete(el) calls the handle class delete method to remove the listener
    and delete it from the workspace.  Calling delete(el) on the listener
    object deletes the listener, which means the event no longer causes
    the callback function to execute. 

    LISTENER does not bind the listener's lifecycle to the object that is
    the source of the event.  Destroying the source object does not impact
    the lifecycle of the listener object.  A listener created with LISTENER
    must be destroyed independently of the source object.  Calling 
    delete(el) explicitly destroys the listener. Redefining or clearing 
    the variable containing the listener can delete the listener if no 
    other references to it exist.  To tie the lifecycle of the listener to 
    the lifecycle of the source object, use addlistener.

    See also ADDLISTENER, EVENT.LISTENER, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID, NOTIFY, DELETE, META.PROPERTY, EVENTS

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lt - < (LT) Less than relation for handles.

H1 < H2 performs element-wise comparisons between handle arrays H1 and
    H2.  H1 and H2 must be of the same dimensions unless one is a scalar.
    The result is a logical array of the same dimensions, where each
    element is an element-wise < result.

    If one of H1 or H2 is scalar, scalar expansion is performed and the 
    result will match the dimensions of the array that is not scalar.

    TF = LT(H1, H2) stores the result in a logical array of the same 
    dimensions.

    See also NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/EQ, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/GE, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/GT, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/LE, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/NE

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---

matfid - create a new ndi.database.implementations.binarydoc.matfid object

NDI_BINARYDOC_MATFID_OBJ = ndi.database.implementations.binarydoc.matfid(PARAM1,VALUE1, ...)

  Follows same arguments as vlt.file.fileobj

  See also: vlt.file.fileobj, vlt.file.fileobj/FILEOBJ

    Documentation for ndi.database.implementations.binarydoc.matfid/matfid
       doc ndi.database.implementations.binarydoc.matfid

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ne - ~= (NE) Not equal relation for handles.

Handles are equal if they are handles for the same object and are 
    unequal otherwise.

    H1 ~= H2 performs element-wise comparisons between handle arrays H1 
    and H2.  H1 and H2 must be of the same dimensions unless one is a 
    scalar.  The result is a logical array of the same dimensions, where 
    each element is an element-wise equality result.

    If one of H1 or H2 is scalar, scalar expansion is performed and the 
    result will match the dimensions of the array that is not scalar.

    TF = NE(H1, H2) stores the result in a logical array of the same
    dimensions.

    See also NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/EQ, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/GE, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/GT, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/LE, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/LT

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notify - NOTIFY Notify listeners of event.

NOTIFY(H, eventname) notifies listeners added to the event named 
    eventname for handle object array H that the event is taking place. 
    eventname can be a string scalar or character vector.  
    H is the array of handles to the event source objects, and 'eventname'
    must be a character vector.

    NOTIFY(H,eventname,ed) provides a way of encapsulating information 
    about an event which can then be accessed by each registered listener.
    ed must belong to the EVENT.EVENTDATA class.

    See also NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/ADDLISTENER, NDI.DATABASE.IMPLEMENTATIONS.BINARYDOC.MATFID/LISTENER, EVENT.EVENTDATA, EVENTS

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setproperties - set the properties of a FILEOBJ

FILEOBJ_OBJ = SETPROPERTIES(FILEOBJ_OBJ, 'PROPERTY1',VALUE1, ...)

  Sets the properties of a FILEOBJ with name/value pairs.

  Properties are:
    fullpathfilename; % the full path file name of the file
    fid;              % The Matlab file identifier
    permission;       % The file permission
    machineformat     % big-endian ('b'), little-endian ('l'), or native ('n')

Help for ndi.database.implementations.binarydoc.matfid/setproperties is inherited from superclass vlt.file.fileobj

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