acp.manager

Class DataManager

java.lang.Object

acp.manager.DataManager

public class DataManager
extends java.lang.Object

DataManager is utilize as the business logic component that package and process the information before passing back to ACPLogic. It uses SessionFactoryUtil to initialize Hibernate and uses DataStore to communicate with the database.

Author:

Teo Kee Cheng

Constructor Summary

Constructors

Constructor and Description
DataManager()

Method Summary

Methods

Modifier and Type	Method and Description
void	initialiseHibernate() Initialise Hibernate library.
void	removeAllData() Remove each sentence, paragraph, and the source information of all the sources in the database.
void	removeData(java.lang.String url) Remove each sentence, paragraph, entity and the source information by the name of the source.
Source	retrieveSource(int id, int type) Retrieve a source information by sentence/entity/paragraph ID.
Source	retrieveSource(java.lang.String url) Retrieve a source information by source url.
Suggestion	retrieveSubsequentText(int id, int type) Retrieve subsequent suggestion by the ID of previous Sentence object and the requested type of subsequent suggestion.
java.util.List<Suggestion>	searchBasedOnRequest(java.lang.String userInput, Preference prefs, boolean autoTrigger) Search for relevant suggestion by input from the user and the user preferences.
int	storeProcessedText(ProcessedText processedText) Store processed information from an extracted source (Source, Paragraph, Sentence, Entities).

Methods inherited from class java.lang.Object

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

Constructor Detail

DataManager

public DataManager()

Method Detail

initialiseHibernate

public void initialiseHibernate()
                         throws java.lang.Throwable

Initialise Hibernate library.

Throws:

java.lang.Throwable

removeData

public void removeData(java.lang.String url)

Remove each sentence, paragraph, entity and the source information by the name of the source.

Parameters:

url - source name of the source document.

removeAllData

public void removeAllData()

Remove each sentence, paragraph, and the source information of all the sources in the database.

retrieveSource

public Source retrieveSource(java.lang.String url)

Retrieve a source information by source url.

Parameters:

url - source url.

Returns:

source object if exist, null if does not exist.

See Also:

Suggestion

retrieveSource

public Source retrieveSource(int id,
                    int type)

Retrieve a source information by sentence/entity/paragraph ID.

Parameters:

id - sentence/entity/paragraph ID.

type - type of Suggestion with regard to the ID. (Refer to Suggestion class constant variable)

Returns:

source object if exist, null if does not exist.

See Also:

Suggestion

retrieveSubsequentText

public Suggestion retrieveSubsequentText(int id,
                                int type)

Retrieve subsequent suggestion by the ID of previous Sentence object and the requested type of subsequent suggestion.

Parameters:

id - ID of previous sentence.

type - type of subsequent suggestion. (Refer to Suggestion class constant variable)

Returns:

Suggestion object if subsequent suggestion exist, null if subsequent suggestion does not exist.

See Also:

Suggestion

searchBasedOnRequest

public java.util.List<Suggestion> searchBasedOnRequest(java.lang.String userInput,
                                              Preference prefs,
                                              boolean autoTrigger)

Search for relevant suggestion by input from the user and the user preferences. It will search on each sentence.

Parameters:

userInput - search string input from the user.

prefs - user preferences of ACP.

autoTrigger - indication of the suggestion trigger mode.

Returns:

non-empty List object if result exist and is according to the preferences (Threshold setting), empty List object if result does not exist or is not according to the preferences (Threshold setting).

See Also:

Suggestion

storeProcessedText

public int storeProcessedText(ProcessedText processedText)

Store processed information from an extracted source (Source, Paragraph, Sentence, Entities). For each Source, Paragraph, Sentence, and Entity object, please initialise according to the only constructor provided with variables.

Parameters:

processedText - processed information from an extracted source.

Returns:

source ID if store succeed, -1 if store fail.

See Also:

ProcessedText