jef.config
Class Instantiator

java.lang.Object
  jef.config.Instantiator

public class Instantiator
extends java.lang.Object

This class is in charge of instantiating objects according to the content of the configuration files, specified via the following system properties:

Jef.ConfigFile.URL
Dna.ConfigFile.URL

These files respectively specify which concrete classes should be used in place of the JEF interfaces at runtime.

Author:

Francesco Russo (frusso@cs.unibo.it)

Field Summary

static java.lang.String	deepCopierFactory The TAG identifing the factory used for instantiating DeepCopier instances
static java.lang.String	disconnectedStructuresFactory The TAG identifing the factory used for instantiating DisconnectedMethod instances
static java.lang.String	disconnectorsFactory The TAG identifing the factory used for instantiating Disconnector instances
static java.lang.String	dnaAttributeFactory The TAG identifing the factory used for instantiating Attribute instances
static java.lang.String	dnaAttributesTableFactory The TAG identifing the factory used for instantiating AttributesTableFactory instances
static java.lang.String	dnaConfigURL The URL pointing to the Dna configuration file
static java.lang.String	dnaConstantInfoFactory The TAG identifing the factory used for instantiating ConstantInfo instances
static java.lang.String	dnaConstantPoolTableFactory The TAG identifing the factory used for instantiating ConstantInfo instances
static java.lang.String	dnaFieldsTableFactory The TAG identifing the factory used for instantiating FieldsTableFactory instances
static java.lang.String	dnaInfoStructureFactory The TAG identifing the factory used for instantiating InfoStructure instances
static java.lang.String	dnaInstructionFactory The TAG identifing the factory used for instantiating Instruction instances
static java.lang.String	dnaMethodsTableFactory The TAG identifing the factory used for instantiating MethodsTableFactory instances
static java.lang.String	dnaMixerFactory The TAG identifing the factory used for instantiating Mixer instances
static java.lang.String	injectorsFactory The TAG identifing the factory used for instantiating Injector instances

Constructor Summary

Instantiator()

Method Summary

static java.lang.Object

getInstance(java.lang.String componentName) This method returns an instance of the valid componentName.

Methods inherited from class java.lang.Object

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

Field Detail

dnaConfigURL

public static final java.lang.String dnaConfigURL

The URL pointing to the Dna configuration file

See Also:

Constant Field Values

dnaMixerFactory

public static final java.lang.String dnaMixerFactory

The TAG identifing the factory used for instantiating Mixer instances

See Also:

Constant Field Values

deepCopierFactory

public static final java.lang.String deepCopierFactory

The TAG identifing the factory used for instantiating DeepCopier instances

See Also:

Constant Field Values

disconnectedStructuresFactory

public static final java.lang.String disconnectedStructuresFactory

The TAG identifing the factory used for instantiating DisconnectedMethod instances

See Also:

Constant Field Values

disconnectorsFactory

public static final java.lang.String disconnectorsFactory

The TAG identifing the factory used for instantiating Disconnector instances

See Also:

Constant Field Values

injectorsFactory

public static final java.lang.String injectorsFactory

The TAG identifing the factory used for instantiating Injector instances

See Also:

Constant Field Values

dnaAttributeFactory

public static final java.lang.String dnaAttributeFactory

The TAG identifing the factory used for instantiating Attribute instances

See Also:

Constant Field Values

dnaConstantPoolTableFactory

public static final java.lang.String dnaConstantPoolTableFactory

The TAG identifing the factory used for instantiating ConstantInfo instances

See Also:

Constant Field Values

dnaConstantInfoFactory

public static final java.lang.String dnaConstantInfoFactory

The TAG identifing the factory used for instantiating ConstantInfo instances

See Also:

Constant Field Values

dnaInfoStructureFactory

public static final java.lang.String dnaInfoStructureFactory

The TAG identifing the factory used for instantiating InfoStructure instances

See Also:

Constant Field Values

dnaInstructionFactory

public static final java.lang.String dnaInstructionFactory

The TAG identifing the factory used for instantiating Instruction instances

See Also:

Constant Field Values

dnaFieldsTableFactory

public static final java.lang.String dnaFieldsTableFactory

The TAG identifing the factory used for instantiating FieldsTableFactory instances

See Also:

Constant Field Values

dnaMethodsTableFactory

public static final java.lang.String dnaMethodsTableFactory

The TAG identifing the factory used for instantiating MethodsTableFactory instances

See Also:

Constant Field Values

dnaAttributesTableFactory

public static final java.lang.String dnaAttributesTableFactory

The TAG identifing the factory used for instantiating AttributesTableFactory instances

See Also:

Constant Field Values

Constructor Detail

Instantiator

public Instantiator()

Method Detail

getInstance

public static java.lang.Object getInstance(java.lang.String componentName)
                                    throws InstantiatorException

This method returns an instance of the valid componentName. The specified componentName has to be one of the valid element names specified as constants by this class.

Parameters:

componentName - A valid element name

Throws:

It - has not been possible to instantiate the required component

InstantiatorException