CLASS ndi.document

 NDI.DOCUMENT - NDI_database storage item, general purpose data and parameter storage
  The ndi.document datatype for storing results in the ndi.database

Superclasses

none

Properties

Property	Description
document_properties	a struct with the fields for the document

Methods

Method	Description
add_dependency_value_n	add a dependency to a named list
dependency	return names and a structure with all dependencies for an ndi.object
dependency_value	return dependency value given dependency name
dependency_value_n	return dependency values from list given dependency name
doc_unique_id	return the document unique identifier for an ndi.document
document	create a new ndi.database object
eq	are two ndi.document objects equal?
id	return the document unique identifier for an ndi.document
plus	merge two ndi.document objects
readblankdefinition	read a blank JSON class definitions from a file location string
readjsonfilelocation	return the text from a json file location string in NDI
remove_dependency_value_n	remove a dependency from a named list
set_dependency_value	set the value of a dependency field
setproperties	Set property values of an ndi.document object
validate	0/1 evaluate whether ndi.document object is valid by its schema

Methods help

add_dependency_value_n - add a dependency to a named list

NDI_DOCUMENT_OBJ = ADD_DEPENDENCY_VALUE_N(NDI_DOCUMENT_OBJ, DEPENDENCY_NAME, VALUE, ...)

  Examines the 'depends_on' field (if it is present) for a given NDI_DOCUMENT_OBJ
  and adds a dependency name 'dependency_name_(n+1)', where n is the number of entries with
  the form 'depenency_name_i' that exist presently. If there is no dependency field with that, then
  an entry is added.

  This function accepts name/value pairs that alter its default behavior:
  Parameter (default)      | Description
  -----------------------------------------------------------------
  ErrorIfNotFound (1)      | If 1, generate an error if the entry is
                           |   not found. Otherwise, generate no error but take no action.

---

dependency - return names and a structure with all dependencies for an ndi.object

[NAMES, DEPEND_STRUCT] = DEPENDENCY(NDI_DOCUMENT_OBJ)

  Returns in the cell array NAMES the 'name' of all 'depends_on' entries in the ndi.document NDI_DOCUMENT_OBJ.
  Further, this function returns a structure with all 'name' and 'value' entries in DEPEND_STRUCT.

---

dependency_value - return dependency value given dependency name

D = DEPENDENCY_VALUE(NDI_DOCUMENT_OBJ, DEPENDENCY_NAME, ...)

  Examines the 'depends_on' field (if it is present) for a given NDI_DOCUMENT_OBJ
  and returns the 'value' associated with the given 'name'. If there is no such
  field (either 'depends_on' or 'name'), then D is empty and an error is generated.

  This function accepts name/value pairs that alter its default behavior:
  Parameter (default)      | Description
  -----------------------------------------------------------------
  ErrorIfNotFound (1)      | If 1, generate an error if the entry is
                           |   not found. Otherwise, return empty.

---

dependency_value_n - return dependency values from list given dependency name

D = DEPENDENCY_VALUE_N(NDI_DOCUMENT_OBJ, DEPENDENCY_NAME, ...)

  Examines the 'depends_on' field (if it is present) for a given NDI_DOCUMENT_OBJ
  and returns the 'values' associated with the given 'name_i', where i varies from 1 to the
  maximum number of entries titled 'name_i'. If there is no such field (either
  'depends_on' or 'name_i'), then D is empty and an error is generated.

  This function accepts name/value pairs that alter its default behavior:
  Parameter (default)      | Description
  -----------------------------------------------------------------
  ErrorIfNotFound (1)      | If 1, generate an error if the entry is
                           |   not found. Otherwise, return empty.

---

doc_unique_id - return the document unique identifier for an ndi.document

UID = DOC_UNIQUE_ID(NDI_DOCUMENT_OBJ)

  Returns the unique id of an ndi.document
  (Found at NDI_DOCUMENT_OBJ.documentproperties.ndi_document.id)

---

document - create a new ndi.database object

NDI_DOCUMENT_OBJ = ndi.document(DOCUMENT_TYPE, 'PARAM1', VALUE1, ...)
    or
  NDI_DOCUMENT_OBJ = ndi.document(MATLAB_STRUCT)

    Documentation for ndi.document/document
       doc ndi.document

---

eq - are two ndi.document objects equal?

B = EQ(NDI_DOCUMENT_OBJ1, NDI_DOCUMENT_OBJ2)

  Returns 1 if and only if the objects have identical document_properties.ndi_document.id
  fields.

---

id - return the document unique identifier for an ndi.document

UID = ID (NDI_DOCUMENT_OBJ)

  Returns the unique id of an ndi.document
  (Found at NDI_DOCUMENT_OBJ.documentproperties.ndi_document.id)

---

plus - merge two ndi.document objects

NDI_DOCUMENT_OBJ_OUT = PLUS(NDI_DOCUMENT_OBJ_A, NDI_DOCUMENT_OBJ_B)

  Merges the ndi.document objects A and B. First, the 'document_class'
  superclasses are merged. Then, the fields that are in B but are not in A
  are added to A. The result is returned in NDI_DOCUMENT_OBJ_OUT.
  Note that any fields that A has that are also in B will be preserved; no elements of
  those fields of B will be combined with A.

---

readblankdefinition - read a blank JSON class definitions from a file location string

S = READBLANKDEFINITION(JSONFILELOCATIONSTRING)

  Given a JSONFILELOCATIONSTRING, this function creates a blank document using the JSON definitions.

  A JSONFILELOCATIONSTRING can be:
    a) a url
    b) a filename (full path)
        c) a filename referenced with respect to $NDIDOCUMENTPATH

  See also: READJSONFILELOCATION

---

readjsonfilelocation - return the text from a json file location string in NDI

T = READJSONFILELOCATION(JSONFILELOCATIONSTRING)

  A JSONFILELOCATIONSTRING can be:
       a) a url
       b) a filename (full path)
       c) a relative filename with respect to $NDIDOCUMENTPATH
       d) a filename referenced with respect to $NDIDOCUMENTPATH

---

remove_dependency_value_n - remove a dependency from a named list

NDI_DOCUMENT_OBJ = REMOVE_DEPENDENCY_VALUE_N(NDI_DOCUMENT_OBJ, DEPENDENCY_NAME, VALUE, N, ...)

  Examines the 'depends_on' field (if it is present) for a given NDI_DOCUMENT_OBJ
  and removes the dependency name 'dependency_name_(n)'.

  This function accepts name/value pairs that alter its default behavior:
  Parameter (default)      | Description
  -----------------------------------------------------------------
  ErrorIfNotFound (1)      | If 1, generate an error if the entry is
                           |   not found. Otherwise, generate no error but take no action.

---

set_dependency_value - set the value of a dependency field

NDI_DOCUMENT_OBJ = SET_DEPENDENCY_VALUE(NDI_DOCUMENT_OBJ, DEPENDENCY_NAME, VALUE, ...)

  Examines the 'depends_on' field (if it is present) for a given NDI_DOCUMENT_OBJ
  and, if there is a dependency with a given 'dependency_name', then the value of the
  dependency is set to DEPENDENCY_VALUE. 

  This function accepts name/value pairs that alter its default behavior:
  Parameter (default)      | Description
  -----------------------------------------------------------------
  ErrorIfNotFound (1)      | If 1, generate an error if the entry is
                           |   not found. Otherwise, add it.

---

setproperties - Set property values of an ndi.document object

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

  Sets the property values of NDI_DOCUMENT_OBJ. PROPERTY values should be expressed
  relative to NDI_DOCUMENT_OBJ.document_properties (see example).

  See also: ndi.document, ndi.document/ndi.document     

  Example:
    mydoc = mydoc.setproperties('ndi_document.name','mydoc name');

---

validate - 0/1 evaluate whether ndi.document object is valid by its schema

B = VALIDATE(NDI_DOCUMENT_OBJ)

  Checks the fields of the ndi.document object against the schema in 
  NDI_DOCUMENT_OBJ.ndi_core_properties.validation_schema and returns 1
  if the object is valid and 0 otherwise.

---