org.aksw.limes.core.io.cache

Class ACache

java.lang.Object

org.aksw.limes.core.io.cache.ACache

All Implemented Interfaces:

ICache

Direct Known Subclasses:

MemoryCache

public abstract class ACache
extends Object
implements ICache

Version:

Jul 8, 2015

Author:

Mohamed Sherif (sherif@informatik.uni-leipzig.de)

Constructor Summary

Constructors

Constructor and Description
ACache()

Method Summary

Modifier and Type	Method and Description
abstract void	addInstance(Instance i)
abstract ACache	addProperty(String sourcePropertyName, String targetPropertyName, String processingChain) Method to process data of a property into a new property with specific preprocessing.
abstract void	addTriple(String s, String p, String o)
abstract ACache	clone()
abstract boolean	containsInstance(Instance i)
abstract boolean	containsUri(String uri)
abstract boolean	equals(Object obj)
abstract ArrayList<Instance>	getAllInstances()
abstract Set<String>	getAllProperties()
abstract ArrayList<String>	getAllUris()
abstract Instance	getInstance(String uri)
abstract Instance	getNextInstance()
abstract ACache	getSample(int size)
abstract int	hashCode()
abstract org.apache.jena.rdf.model.Model	parseCSVtoRDFModel(String baseURI, String IDbaseURI, String rdfType) Basic method to create a JENA Model out of a cache.
abstract void	replaceInstance(String uri, Instance a)
abstract void	resetIterator()
abstract int	size()

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ACache

public ACache()

Method Detail

addInstance

public abstract void addInstance(Instance i)

getNextInstance

public abstract Instance getNextInstance()

getAllInstances

public abstract ArrayList<Instance> getAllInstances()

getAllUris

public abstract ArrayList<String> getAllUris()

addTriple

public abstract void addTriple(String s,
                               String p,
                               String o)

containsInstance

public abstract boolean containsInstance(Instance i)

containsUri

public abstract boolean containsUri(String uri)

getInstance

public abstract Instance getInstance(String uri)

resetIterator

public abstract void resetIterator()

size

public abstract int size()

getSample

public abstract ACache getSample(int size)

replaceInstance

public abstract void replaceInstance(String uri,
                                     Instance a)

getAllProperties

public abstract Set<String> getAllProperties()

clone

public abstract ACache clone()

Overrides:

clone in class Object

hashCode

public abstract int hashCode()

Overrides:

hashCode in class Object

equals

public abstract boolean equals(Object obj)

Overrides:

equals in class Object

addProperty

public abstract ACache addProperty(String sourcePropertyName,
                                   String targetPropertyName,
                                   String processingChain)

Method to process data of a property into a new property with specific preprocessing.

Parameters:

sourcePropertyName - Name of the property to process.

targetPropertyName - Name of the new property to process data into.

processingChain - Preprocessing Expression.

Returns:

Cache after property add

parseCSVtoRDFModel

public abstract org.apache.jena.rdf.model.Model parseCSVtoRDFModel(String baseURI,
                                                                   String IDbaseURI,
                                                                   String rdfType)

Basic method to create a JENA Model out of a cache. Restriction 1: Assumes all objects are literal values. Thus, resource URIs are represented as Strings. Restriction 2: Adds a rdf:Type statement for all instances.

Parameters:

baseURI - Base URI of properties, could be empty.

IDbaseURI - Base URI for id of resources: URI(instance) := IDbaseURI+instance.getID(). Could be empty.

rdfType - rdf:Type of the instances.

Returns:

JENA RDF Model