Package chemaxon.marvin.io

Class MFieldAccessor

java.lang.Object

chemaxon.marvin.io.MFieldAccessor

@PublicAPI
public abstract class MFieldAccessor
extends Object

Abstract class for extracting fields (properties) from input and storing them. Under development, please do not implement it yet!

Since:

Marvin 5.0, 11/08/2007

Constructor Summary

Constructors

Constructor	Description
MFieldAccessor()

Method Summary

Modifier and Type	Method	Description
abstract void	getFields(int irec, Molecule mol, String[] keys, MProp[] values)	Extracts properties.
abstract String[]	getKeys(int irec, Molecule mol)	Gets the keys in a record.
abstract Molecule	getMainMolecule(int irec, Molecule mol)	Gets the main molecule object in a record.
abstract boolean	isEditable(int irec, Molecule mol, String key)	Tests whether a field is editable or not.
protected String	propToString(MProp p)	Converts a property to a string.
void	setField(int irec, Molecule mol, String key, MProp p)	Sets a property.
abstract void	setFields(int irec, Molecule mol, String[] keys, MProp[] values)	Sets properties.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MFieldAccessor

public MFieldAccessor()

Method Detail

getMainMolecule

public abstract Molecule getMainMolecule(int irec,
                                         Molecule mol)

Gets the main molecule object in a record.

Parameters:

irec - the record number

mol - input molecule, may be null in case of an implementation for which the record number is enough

Returns:

the main molecule object or null if it does not exist

getKeys

public abstract String[] getKeys(int irec,
                                 Molecule mol)

Gets the keys in a record.

Parameters:

irec - the record number

mol - input molecule, may be null in case of an implementation for which the record number is enough

Returns:

the array of keys

getFields

public abstract void getFields(int irec,
                               Molecule mol,
                               String[] keys,
                               MProp[] values)

Extracts properties.

Parameters:

irec - the record number

mol - input molecule, may be null in case of an implementation for which the record number is enough

keys - array of field keys

values - the output array, may contain null if a property is not found

setFields

public abstract void setFields(int irec,
                               Molecule mol,
                               String[] keys,
                               MProp[] values)

Sets properties.

Parameters:

irec - the record number

mol - input molecule, may be null in case of an implementation for which the record number is enough

keys - array of field keys

values - array of values

isEditable

public abstract boolean isEditable(int irec,
                                   Molecule mol,
                                   String key)

Tests whether a field is editable or not.

Parameters:

irec - the record number

mol - input molecule, may be null in case of an implementation for which the record number is enough

key - the field key

Returns:

true if setFields works for this key, false otherwise

setField

public final void setField(int irec,
                           Molecule mol,
                           String key,
                           MProp p)

Sets a property.

Parameters:

irec - the record number

mol - input molecule, may be null in case of an implementation for which the record number is enough

key - the field key

p - the property value

propToString

protected String propToString(MProp p)

Converts a property to a string. Utility method called by implementations.

Parameters:

p - the property

Returns:

the string value