gr.demokritos.iit.jinsect.storage
Class INSECTFileDB<TObjectType extends java.io.Serializable>

java.lang.Object
  gr.demokritos.iit.jinsect.storage.INSECTDB
      gr.demokritos.iit.jinsect.storage.INSECTFileDB<TObjectType>

All Implemented Interfaces:

java.io.Serializable

public class INSECTFileDB<TObjectType extends java.io.Serializable>
extends INSECTDB
implements java.io.Serializable

A file database that uses a single file per stored object.

See Also:

Serialized Form

Field Summary

Fields inherited from class gr.demokritos.iit.jinsect.storage.INSECTDB

CATEGORY_TYPE, DOCUMENT_TYPE

Constructor Summary

INSECTFileDB()

INSECTFileDB(java.lang.String sPrefix, java.lang.String sBaseDir)
Creates a new instance of INSECTFileDB

Method Summary

void	deleteObject(java.lang.String sObjectName, java.lang.String sObjectCategory) Deletes a given object from the database.
boolean	existsObject(java.lang.String sObjectName, java.lang.String sObjectCategory) Checks whether a given object exists in the database.
java.lang.String	getObjDataToString(java.lang.Object oObject) Returns a string representation of a given object.
java.lang.String[]	getObjectList(java.lang.String sObjectCategory) Returns an array of object names for a given category.
TObjectType	getStringToObjData(java.lang.String sData) Converts a string representation to an object equivalent.
TObjectType	loadObject(java.lang.String sObjectName, java.lang.String sObjectCategory) Loads a given Serializable object, with a given name and a given category from the database.
void	saveObject(java.io.Serializable oObj, java.lang.String sObjectName, java.lang.String sObjectCategory) Saves a given Serializable object, with a given name and a given category.

Methods inherited from class gr.demokritos.iit.jinsect.storage.INSECTDB

finalizeDB

Methods inherited from class java.lang.Object

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

Constructor Detail

INSECTFileDB

public INSECTFileDB()

INSECTFileDB

public INSECTFileDB(java.lang.String sPrefix,
                    java.lang.String sBaseDir)

Creates a new instance of INSECTFileDB

Method Detail

saveObject

public void saveObject(java.io.Serializable oObj,
                       java.lang.String sObjectName,
                       java.lang.String sObjectCategory)

Description copied from class: INSECTDB

Saves a given Serializable object, with a given name and a given category.

Specified by:

saveObject in class INSECTDB

Parameters:

oObj - The object to save.

sObjectName - The name (and unique identifier within the category) of the object.

sObjectCategory - The category of the object.

loadObject

public TObjectType loadObject(java.lang.String sObjectName,
                              java.lang.String sObjectCategory)

Description copied from class: INSECTDB

Loads a given Serializable object, with a given name and a given category from the database.

Specified by:

loadObject in class INSECTDB

Parameters:

sObjectName - The name (and unique identifier within the category) of the object.

sObjectCategory - The category of the saved object.

Returns:

The loaded object.

deleteObject

public void deleteObject(java.lang.String sObjectName,
                         java.lang.String sObjectCategory)

Description copied from class: INSECTDB

Deletes a given object from the database.

Specified by:

deleteObject in class INSECTDB

Parameters:

sObjectName - The name (and unique identifier within the category) of the object.

sObjectCategory - The category of the saved object.

existsObject

public boolean existsObject(java.lang.String sObjectName,
                            java.lang.String sObjectCategory)

Description copied from class: INSECTDB

Checks whether a given object exists in the database.

Overrides:

existsObject in class INSECTDB

Parameters:

sObjectName - The name (and unique identifier within the category) of the object.

sObjectCategory - The category of the saved object.

Returns:

True if the object exists, otherwise false.

getObjectList

public java.lang.String[] getObjectList(java.lang.String sObjectCategory)

Description copied from class: INSECTDB

Returns an array of object names for a given category.

Overrides:

getObjectList in class INSECTDB

Parameters:

sObjectCategory - The required category of the objects.

Returns:

An String array, with all the saved objects corresponding to the given category.

getObjDataToString

public java.lang.String getObjDataToString(java.lang.Object oObject)

Description copied from class: INSECTDB

Returns a string representation of a given object.

Specified by:

getObjDataToString in class INSECTDB

Parameters:

oObject - The object to represent.

Returns:

The string representation of the object.

getStringToObjData

public TObjectType getStringToObjData(java.lang.String sData)

Description copied from class: INSECTDB

Converts a string representation to an object equivalent.

Specified by:

getStringToObjData in class INSECTDB

Parameters:

sData - The string representation of the object.

Returns:

The represented object.