edu::tum::cs::srl::Database Class Reference

Inheritance diagram for edu::tum::cs::srl::Database:

Classes
class	Variable
Public Member Functions
boolean	addVariable (Variable var) throws Exception
void	checkDomains (boolean verbose)
boolean	contains (String varName)
	Database (RelationalModel model) throws Exception
String	getConstantType (String constant)
Iterable< String >	getDomain (String domName) throws Exception
HashMap< String, HashSet < String > >	getDomains () throws Exception
Collection< Variable >	getEntries () throws Exception
String[][]	getEntriesAsArray () throws Exception
RelationalModel	getModel ()
ParameterHandler	getParameterHandler ()
String[]	getParameterSet (RelationKey key, String[] keyValues)
Signature	getSignature (String functionName)
Variable	getVariable (String varName)
String	getVariableValue (String varName, boolean closedWorld) throws Exception
void	print () throws Exception
void	printDomain (PrintStream out)
void	readBLOGDB (String databaseFilename, boolean ignoreUndefinedNodes) throws Exception
void	readBLOGDB (String databaseFilename) throws Exception
void	readMLNDB (String databaseFilename, boolean ignoreUndefinedNodes) throws Exception
void	readMLNDB (String databaseFilename) throws Exception
void	setClosedWorldPred (String predName) throws Exception
void	setDebug (boolean debug)
void	setVerbose (boolean verbose)
Public Attributes
RelationalModel	model
Protected Member Functions
boolean	addVariable (Variable var, boolean ignoreUndefinedFunctions, boolean doPrologAssertions) throws Exception
void	fillDomain (String type, String value) throws Exception
boolean	getPrologValue (Signature sig, String[] args) throws Exception
void	setClosedWorldPred (Signature sig, int i, String[] params) throws Exception
Protected Attributes
boolean	debug = false
HashMap< String, HashSet < String > >	domains
HashMap< String, String >	entity2type
HashMap< String, Variable >	entries
HashMap< RelationKey, HashMap < String, String[]> >	functionalDependencies
HashMap< String, MultiIterator < String > >	multiDomains
ParameterHandler	paramHandler
PrologKnowledgeBase	prolog
Boolean	prologDatabaseExtended = false
Taxonomy	taxonomy
boolean	verbose = false

Detailed Description

represents an evidence/training database for a relational model

Author:: jain

Definition at line 28 of file Database.java.

Constructor & Destructor Documentation

edu::tum::cs::srl::Database::Database ( RelationalModel model ) throws Exception [inline]

constructs an empty database for the given model

Parameters:

model

Exceptions:

Exception

Definition at line 56 of file Database.java.

Member Function Documentation

boolean edu::tum::cs::srl::Database::addVariable	(	Variable	var,
		boolean	ignoreUndefinedFunctions,
		boolean	doPrologAssertions
	)			throws Exception `[inline, protected]`

Definition at line 178 of file Database.java.

boolean edu::tum::cs::srl::Database::addVariable ( Variable var ) throws Exception [inline]

adds the given variable to the database if it isn't already present

Definition at line 174 of file Database.java.

void edu::tum::cs::srl::Database::checkDomains ( boolean verbose ) [inline]

checks the domains for overlaps and merges domains if necessary

Definition at line 363 of file Database.java.

boolean edu::tum::cs::srl::Database::contains ( String varName ) [inline]

checks whether the database contains an entry for the given variable name

Definition at line 160 of file Database.java.

void edu::tum::cs::srl::Database::fillDomain	(	String	type,
		String	value
	)			throws Exception `[inline, protected]`

adds to the domain type the given value

Parameters:

	type	name of the domain/type
	value	the value/entity name to add

Exceptions:

Exception

Definition at line 328 of file Database.java.

String edu::tum::cs::srl::Database::getConstantType ( String constant ) [inline]

gets the type of the given constant by searching through the domains

Parameters:

constant

Returns:: the type name or null if the constant is unknown

Definition at line 617 of file Database.java.

Iterable<String> edu::tum::cs::srl::Database::getDomain ( String domName ) throws Exception [inline]

Parameters:

domName

Returns:: the domain as a set of strings or null if the domain is not found

Exceptions:

Exception

Definition at line 400 of file Database.java.

HashMap<String, HashSet<String> > edu::tum::cs::srl::Database::getDomains ( ) throws Exception [inline]

Returns:

Definition at line 601 of file Database.java.

Collection<Variable> edu::tum::cs::srl::Database::getEntries ( ) throws Exception [inline]

retrieves all entries in the database TODO Because of the prolog database extension, calling this method should render the database immutable

Returns:

Exceptions:

Exception

Definition at line 430 of file Database.java.

String [][] edu::tum::cs::srl::Database::getEntriesAsArray ( ) throws Exception [inline]

Returns:: the values of this database as an array of String[2] arrays, where the first element of each is the name of the variable, and the second is the value

Exceptions:

Exception

Definition at line 471 of file Database.java.

RelationalModel edu::tum::cs::srl::Database::getModel ( ) [inline]

Definition at line 607 of file Database.java.

ParameterHandler edu::tum::cs::srl::Database::getParameterHandler ( ) [inline]

Implements edu::tum::cs::inference::IParameterHandler.

Definition at line 653 of file Database.java.

String [] edu::tum::cs::srl::Database::getParameterSet	(	RelationKey	key,
		String[]	keyValues
	)			`[inline]`

Definition at line 255 of file Database.java.

boolean edu::tum::cs::srl::Database::getPrologValue	(	Signature	sig,
		String[]	args
	)			throws Exception `[inline, protected]`

computes the value of a variable via Prolog and adds it to the database

Parameters:

	sig
	args

Returns:

Exceptions:

Exception

Definition at line 453 of file Database.java.

Signature edu::tum::cs::srl::Database::getSignature ( String functionName ) [inline]

Definition at line 516 of file Database.java.

Variable edu::tum::cs::srl::Database::getVariable ( String varName ) [inline]

retrieves a variable setting

Parameters:

varName

the name of the variable to retrieve

Returns:: returns the variable setting with the given name if it is contained in the database), null otherwise

Deprecated:: because it does not really work with prolog predicates

Definition at line 153 of file Database.java.

String edu::tum::cs::srl::Database::getVariableValue	(	String	varName,
		boolean	closedWorld
	)			throws Exception `[inline]`

gets a variable's value as stored in the database

Parameters:

	varName	the name of the variable whose value is to be retrieved
	closedWorld	whether to make the closed-world assumption, i.e. to assume that any Boolean variable for which we do not have a value is "False"

Returns:: If a value for the given variable is stored in the database (or can be computed based on Prolog rules), it is returned. Otherwise, null is returned - unless the closed world assumption is being made and the variable is boolean, in which case the default value of "False" is returned.

Exceptions:

Exception

Definition at line 112 of file Database.java.

void edu::tum::cs::srl::Database::print ( ) throws Exception [inline]

Definition at line 526 of file Database.java.

void edu::tum::cs::srl::Database::printDomain ( PrintStream out ) [inline]

Definition at line 520 of file Database.java.