A singleton class that serves as a global registry for Chem.MolecularGraphInputHandler and Chem.MolecularGraphOutputHandler implementation instances. More...

Inheritance diagram for CDPL.Chem.MolecularGraphIOManager:

Classes
class	InputHandlerSequence

class	OutputHandlerSequence

Static Public Member Functions
None	registerInputHandler (MolecularGraphInputHandler handler)
	Registers the specified Chem.MolecularGraphInputHandler implementation instance. More...

MolecularGraphInputHandler	getInputHandler (int idx)
	Returns a reference to the registered Chem.MolecularGraphInputHandler implementation instance with the specified index. More...

MolecularGraphInputHandler	getInputHandlerByFormat (Base.DataFormat fmt)
	Returns a reference to a Chem.MolecularGraphInputHandler implementation instance registered for the specified data format. More...

MolecularGraphInputHandler	getInputHandlerByName (str name)
	Returns a reference to a Chem.MolecularGraphInputHandler implementation instance registered for the data format with the specified name. More...

MolecularGraphInputHandler	getInputHandlerByFileExtension (str file_ext)
	Returns a reference to a Chem.MolecularGraphInputHandler implementation instance registered for the data format with the specified file extension. More...

MolecularGraphInputHandler	getInputHandlerByMimeType (str mime_type)
	Returns a reference to a Chem.MolecularGraphInputHandler implementation instance registered for the data format with the specified mime-type. More...

bool	unregisterInputHandler (Base.DataFormat fmt)
	Unregisters the Chem.MolecularGraphInputHandler implementation instance for the specified data format. More...

None	unregisterInputHandler (int idx)
	Unregisters the Chem.MolecularGraphInputHandler implementation instance with the specified index. More...

bool	unregisterInputHandler (MolecularGraphInputHandler handler)
	Unregisters the specified Chem.MolecularGraphInputHandler implementation instance. More...

int	getNumInputHandlers ()
	Returns the number of registered Chem.MolecularGraphInputHandler implementation instances. More...

InputHandlerSequence	getInputHandlers ()

None	registerOutputHandler (MolecularGraphOutputHandler handler)
	Registers the specified Chem.MolecularGraphOutputHandler implementation instance. More...

MolecularGraphOutputHandler	getOutputHandler (int idx)
	Returns a reference to the registered Chem.MolecularGraphOutputHandler implementation instance with the specified index. More...

MolecularGraphOutputHandler	getOutputHandlerByFormat (Base.DataFormat fmt)
	Returns a reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the specified data format. More...

MolecularGraphOutputHandler	getOutputHandlerByName (str name)
	Returns a reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the data format with the specified name. More...

MolecularGraphOutputHandler	getOutputHandlerByFileExtension (str file_ext)
	Returns a reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the data format with the specified file extension. More...

MolecularGraphOutputHandler	getOutputHandlerByMimeType (str mime_type)
	Returns a reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the data format with the specified mime-type. More...

bool	unregisterOutputHandler (Base.DataFormat fmt)
	Unregisters the Chem.MolecularGraphOutputHandler implementation instance for the specified data format. More...

None	unregisterOutputHandler (int idx)
	Unregisters the Chem.MolecularGraphOutputHandler implementation instance with the specified index. More...

bool	unregisterOutputHandler (MolecularGraphOutputHandler handler)
	Unregisters the specified Chem.MolecularGraphOutputHandler implementation instance. More...

int	getNumOutputHandlers ()
	Returns the number of registered Chem.MolecularGraphOutputHandler implementation instances. More...

OutputHandlerSequence	getOutputHandlers ()

Static Public Attributes
	inputHandlers = _HIDDEN_VALUE_

int	numInputHandlers = 0

	outputHandlers = _HIDDEN_VALUE_

int	numOutputHandlers = 30

Detailed Description

A singleton class that serves as a global registry for Chem.MolecularGraphInputHandler and Chem.MolecularGraphOutputHandler implementation instances.

DataIOManager provides static methods for the registration and lookup of Chem.MolecularGraphInputHandler and Chem.MolecularGraphOutputHandler implementation instances that handle different input and output storage formats.

Input and output handlers are registered by the methods registerInputHandler() and registerOutputHandler(). These methods expect a reference to an instance of the respective handler implementation as an argument (please note that the registered instance must not be destroyed as long as it is accessible via the DataIOManager interface!).

For the removal of registered handlers the unregisterInputHandler() and unregisterOutputHandler() family of overloaded methods is provided. These methods accept a reference to the registered handler instance, the handler index, the handled data format or an iterator pointing to the handler as an argument.

Registered input handlers can be queried by the methods getInputHandlerByFormat(), getInputHandlerByName(), getInputHandlerByFileExtension() and getInputHandlerByMimeType(), which allow to find a suitable handler for a given data format, data format name, file extension or mime-type. For the registered output handlers similar methods are provided.

I/O handlers for data formats and object types supported by the CDPL are registered in the static library initialization code. These built-in handlers are accessible by the linking client code as soon as the library initialization has finished.

Member Function Documentation

◆ registerInputHandler()

None CDPL.Chem.MolecularGraphIOManager.registerInputHandler ( MolecularGraphInputHandler handler )

static

Registers the specified Chem.MolecularGraphInputHandler implementation instance.

Parameters

handler The Chem.MolecularGraphInputHandler implementation instance to register.

◆ getInputHandler()

MolecularGraphInputHandler CDPL.Chem.MolecularGraphIOManager.getInputHandler ( int idx )

static

Returns a reference to the registered Chem.MolecularGraphInputHandler implementation instance with the specified index.

Parameters

idx	The zero-based index of the Chem.MolecularGraphInputHandler implementation instance to return.

Returns: A reference to the Chem.MolecularGraphInputHandler implementation instance with the specified index.

Exceptions

Base.IndexError if idx is out of bounds.

◆ getInputHandlerByFormat()

MolecularGraphInputHandler CDPL.Chem.MolecularGraphIOManager.getInputHandlerByFormat ( Base.DataFormat fmt )

static

Returns a reference to a Chem.MolecularGraphInputHandler implementation instance registered for the specified data format.

Parameters

fmt	Specifies the data format that is associated with the requested Chem.MolecularGraphInputHandler implementation instance.

Returns: A reference to a Chem.MolecularGraphInputHandler implementation instance registered for the specified data format, or None if not available.

◆ getInputHandlerByName()

MolecularGraphInputHandler CDPL.Chem.MolecularGraphIOManager.getInputHandlerByName ( str name )

static

Returns a reference to a Chem.MolecularGraphInputHandler implementation instance registered for the data format with the specified name.

Parameters

name	Specifies the name of the data format that is associated with the requested Chem.MolecularGraphInputHandler implementation instance.

Returns: A reference to a Chem.MolecularGraphInputHandler implementation instance registered for the data format with the specified name, or None if not available.

Note: The matching of the name is not case-sensitive.

◆ getInputHandlerByFileExtension()

MolecularGraphInputHandler CDPL.Chem.MolecularGraphIOManager.getInputHandlerByFileExtension ( str file_ext )

static

Returns a reference to a Chem.MolecularGraphInputHandler implementation instance registered for the data format with the specified file extension.

Parameters

file_ext Specifies the file extension of the data format that is associated with the requested Chem.MolecularGraphInputHandler implementation instance.

Returns: A reference to a Chem.MolecularGraphInputHandler implementation instance registered for the data format with the specified file extension, or None if not available.

Note: The matching of the file extension is not case-sensitive.

◆ getInputHandlerByMimeType()

MolecularGraphInputHandler CDPL.Chem.MolecularGraphIOManager.getInputHandlerByMimeType ( str mime_type )

static

Returns a reference to a Chem.MolecularGraphInputHandler implementation instance registered for the data format with the specified mime-type.

Parameters

mime_type Specifies the mime-type of the data format that is associated with the requested Chem.MolecularGraphInputHandler implementation instance.

Returns: A reference to a Chem.MolecularGraphInputHandler implementation instance registered for the data format with the specified mime-type, or None if not available.

Note: The matching of the mime-type is not case-sensitive.

◆ unregisterInputHandler() [1/3]

bool CDPL.Chem.MolecularGraphIOManager.unregisterInputHandler ( Base.DataFormat fmt )

static

Unregisters the Chem.MolecularGraphInputHandler implementation instance for the specified data format.

Only one handler instance at a time will be unregistered (in a first in - first out manner). If more than one handler instance has been registered for the given data format, the method has to be called multiple times to unregister all instances.

Parameters

fmt	Specifies the data format that is associated with the handler instance to unregister.

Returns: True if a handler instance for the specified data format was found and has been unregistered, and False otherwise.

◆ unregisterInputHandler() [2/3]

None CDPL.Chem.MolecularGraphIOManager.unregisterInputHandler ( int idx )

static

Unregisters the Chem.MolecularGraphInputHandler implementation instance with the specified index.

Parameters

idx	The zero-based index of the Chem.MolecularGraphInputHandler implementation instance to unregister.

Exceptions

Base.IndexError if idx is out of bounds.

◆ unregisterInputHandler() [3/3]

bool CDPL.Chem.MolecularGraphIOManager.unregisterInputHandler ( MolecularGraphInputHandler handler )

static

Unregisters the specified Chem.MolecularGraphInputHandler implementation instance.

Parameters

handler The Chem.MolecularGraphInputHandler implementation instance to unregister.

Returns: True if the handler instance was found and has been unregistered, and False otherwise.

◆ getNumInputHandlers()

int CDPL.Chem.MolecularGraphIOManager.getNumInputHandlers ( )

static

Returns the number of registered Chem.MolecularGraphInputHandler implementation instances.

Returns: The number of registered Chem.MolecularGraphInputHandler implementation instances.

◆ getInputHandlers()

InputHandlerSequence CDPL.Chem.MolecularGraphIOManager.getInputHandlers ( )

static

Parameters

<br>

Returns

◆ registerOutputHandler()

None CDPL.Chem.MolecularGraphIOManager.registerOutputHandler ( MolecularGraphOutputHandler handler )

static

Registers the specified Chem.MolecularGraphOutputHandler implementation instance.

Parameters

handler The Chem.MolecularGraphOutputHandler implementation instance to register.

◆ getOutputHandler()

MolecularGraphOutputHandler CDPL.Chem.MolecularGraphIOManager.getOutputHandler ( int idx )

static

Returns a reference to the registered Chem.MolecularGraphOutputHandler implementation instance with the specified index.

Parameters

idx	The zero-based index of the Chem.MolecularGraphOutputHandler implementation instance to return.

Returns: A reference to the Chem.MolecularGraphOutputHandler implementation instance with the specified index.

Exceptions

Base.IndexError if idx is out of bounds.

◆ getOutputHandlerByFormat()

MolecularGraphOutputHandler CDPL.Chem.MolecularGraphIOManager.getOutputHandlerByFormat ( Base.DataFormat fmt )

static

Returns a reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the specified data format.

Parameters

fmt	Specifies the data format that is associated with the requested Chem.MolecularGraphOutputHandler implementation instance.

Returns: A reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the specified data format, or None if not available.

◆ getOutputHandlerByName()

MolecularGraphOutputHandler CDPL.Chem.MolecularGraphIOManager.getOutputHandlerByName ( str name )

static

Returns a reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the data format with the specified name.

Parameters

name	Specifies the name of the data format that is associated with the requested Chem.MolecularGraphOutputHandler implementation instance.

Returns: A reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the data format with the specified name, or None if not available.

Note: The matching of the name is not case-sensitive.

◆ getOutputHandlerByFileExtension()

MolecularGraphOutputHandler CDPL.Chem.MolecularGraphIOManager.getOutputHandlerByFileExtension ( str file_ext )

static

Returns a reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the data format with the specified file extension.

Parameters

file_ext Specifies the file extension of the data format that is associated with the requested Chem.MolecularGraphOutputHandler implementation instance.

Returns: A reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the data format with the specified file extension, or None if not available.

Note: The matching of the file extension is not case-sensitive.

◆ getOutputHandlerByMimeType()

MolecularGraphOutputHandler CDPL.Chem.MolecularGraphIOManager.getOutputHandlerByMimeType ( str mime_type )

static

Returns a reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the data format with the specified mime-type.

Parameters

mime_type Specifies the mime-type of the data format that is associated with the requested Chem.MolecularGraphOutputHandler implementation instance.

Returns: A reference to a Chem.MolecularGraphOutputHandler implementation instance registered for the data format with the specified mime-type, or None if not available.

Note: The matching of the mime-type is not case-sensitive.

◆ unregisterOutputHandler() [1/3]

bool CDPL.Chem.MolecularGraphIOManager.unregisterOutputHandler ( Base.DataFormat fmt )

static

Unregisters the Chem.MolecularGraphOutputHandler implementation instance for the specified data format.

Only one handler instance at a time will be unregistered (in a first in - first out manner). If more than one handler instance has been registered for the given data format, the method has to be called multiple times to unregister all instances.

Parameters

fmt	Specifies the data format that is associated with the handler instance to unregister.

Returns: True if a handler instance for the specified data format was found and has been unregistered, and False otherwise.

◆ unregisterOutputHandler() [2/3]

None CDPL.Chem.MolecularGraphIOManager.unregisterOutputHandler ( int idx )

static

Unregisters the Chem.MolecularGraphOutputHandler implementation instance with the specified index.

Parameters

idx	The zero-based index of the Chem.MolecularGraphOutputHandler implementation instance to unregister.

Exceptions

Base.IndexError if idx is out of bounds.

◆ unregisterOutputHandler() [3/3]

bool CDPL.Chem.MolecularGraphIOManager.unregisterOutputHandler ( MolecularGraphOutputHandler handler )

static

Unregisters the specified Chem.MolecularGraphOutputHandler implementation instance.

Parameters

handler The Chem.MolecularGraphOutputHandler implementation instance to unregister.

Returns: True if the handler instance was found and has been unregistered, and False otherwise.

◆ getNumOutputHandlers()

int CDPL.Chem.MolecularGraphIOManager.getNumOutputHandlers ( )

static

Returns the number of registered Chem.MolecularGraphOutputHandler implementation instances.

Returns: The number of registered Chem.MolecularGraphOutputHandler implementation instances.

◆ getOutputHandlers()

OutputHandlerSequence CDPL.Chem.MolecularGraphIOManager.getOutputHandlers ( )

static

Parameters

<br>

Returns

Classes

Static Public Member Functions

Static Public Attributes

Detailed Description

Member Function Documentation

◆ registerInputHandler()

◆ getInputHandler()

◆ getInputHandlerByFormat()

◆ getInputHandlerByName()

◆ getInputHandlerByFileExtension()

◆ getInputHandlerByMimeType()

◆ unregisterInputHandler() [1/3]

◆ unregisterInputHandler() [2/3]

◆ unregisterInputHandler() [3/3]

◆ getNumInputHandlers()

◆ getInputHandlers()

◆ registerOutputHandler()

◆ getOutputHandler()

◆ getOutputHandlerByFormat()

◆ getOutputHandlerByName()

◆ getOutputHandlerByFileExtension()

◆ getOutputHandlerByMimeType()

◆ unregisterOutputHandler() [1/3]

◆ unregisterOutputHandler() [2/3]

◆ unregisterOutputHandler() [3/3]

◆ getNumOutputHandlers()

◆ getOutputHandlers()