1.1 --- a/generaldb/src/main/java/org/openrdf/sail/generaldb/algebra/GeneralDBColumnVar.java	Mon Nov 05 21:33:07 2012 +0200
     1.2 +++ b/generaldb/src/main/java/org/openrdf/sail/generaldb/algebra/GeneralDBColumnVar.java	Tue Nov 06 01:13:57 2012 +0200
     1.3 @@ -35,7 +35,7 @@
     1.4  
     1.5  	private String alias;
     1.6  
     1.7 -	
     1.8 +	private boolean temporal = false;
     1.9  
    1.10  	private String column;
    1.11  
    1.12 @@ -160,8 +160,24 @@
    1.13  		}
    1.14  		return var;
    1.15  	}
    1.16 -
    1.17 +//checks whether the sql variable is a temporal variable
    1.18  	
    1.19 +	public static GeneralDBColumnVar createTemporalColumn(String alias, Var v, Value value) {
    1.20 +		GeneralDBColumnVar var = new GeneralDBColumnVar();
    1.21 +		var.alias = alias;
    1.22 +		var.column = "id";
    1.23 +		var.name = v.getName();
    1.24 +		var.anonymous = v.isAnonymous();
    1.25 +		var.value = value;
    1.26 +		var.types = ValueTypes.UNKNOWN;
    1.27 +		if (value instanceof RdbmsResource) {
    1.28 +			var.types = ValueTypes.RESOURCE;
    1.29 +		}
    1.30 +		
    1.31 +		var.setTemporal(true);
    1.32 +		
    1.33 +		return var;
    1.34 +	}
    1.35  	
    1.36  	public boolean isSpatial() {
    1.37  		return spatial;
    1.38 @@ -302,4 +318,13 @@
    1.39  		return sb.toString();
    1.40  	}
    1.41  
    1.42 +	public boolean isTemporal() {
    1.43 +		return temporal;
    1.44 +	}
    1.45 +
    1.46 +	public void setTemporal(boolean temporal) {
    1.47 +		this.temporal = temporal;
    1.48 +	}
    1.49 +	
    1.50 +
    1.51  }

     2.1 --- a/generaldb/src/main/java/org/openrdf/sail/generaldb/schema/PeriodTable.java	Mon Nov 05 21:33:07 2012 +0200
     2.2 +++ b/generaldb/src/main/java/org/openrdf/sail/generaldb/schema/PeriodTable.java	Tue Nov 06 01:13:57 2012 +0200
     2.3 @@ -1,3 +1,18 @@
     2.4 +/**
     2.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     2.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     2.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     2.8 + *
     2.9 + * Copyright (C) 2012, Pyravlos Team
    2.10 + *
    2.11 + * http://www.strabon.di.uoa.gr/
    2.12 + * 
    2.13 + *  @author Konstantina Bereta <Konstantina.Bereta@di.uoa.gr>
    2.14 + *
    2.15 + * PeriodTable extends the underlying rdbms schema of Strabon with one more table for storing period values.
    2.16 + * These values are of Postgres Temporal PERIOD datatype. An Gist index is also used. 
    2.17 + */
    2.18 +
    2.19  package org.openrdf.sail.generaldb.schema;
    2.20  
    2.21  import java.sql.PreparedStatement;
    2.22 @@ -11,16 +26,7 @@
    2.23  import org.openrdf.sail.generaldb.GeneralDBSqlTable;
    2.24  import org.openrdf.sail.rdbms.schema.RdbmsTable;
    2.25  
    2.26 -/**
    2.27 - * Modified to be used with a valid time-enabled table
    2.28 - *
    2.29 - * Manages the rows in a value table. These tables have two columns: an internal
    2.30 - * id column and a value (PERIOD) column
    2.31 - * 
    2.32 - * @author James Leigh
    2.33 - * @author Konstantina Bereta
    2.34 - * 
    2.35 - */
    2.36 +
    2.37  
    2.38  public class PeriodTable {
    2.39  	public static int BATCH_SIZE = 8 * 1024;

     3.1 --- a/runtime/src/main/java/eu/earthobservatory/runtime/generaldb/GeosparqlRDFHandlerBase.java	Mon Nov 05 21:33:07 2012 +0200
     3.2 +++ b/runtime/src/main/java/eu/earthobservatory/runtime/generaldb/GeosparqlRDFHandlerBase.java	Tue Nov 06 01:13:57 2012 +0200
     3.3 @@ -2,11 +2,19 @@
     3.4   * This Source Code Form is subject to the terms of the Mozilla Public
     3.5   * License, v. 2.0. If a copy of the MPL was not distributed with this
     3.6   * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     3.7 + *
     3.8 + * Copyright (C) 2012, Pyravlos Team
     3.9 + *
    3.10 + * http://www.strabon.di.uoa.gr/
    3.11   * 
    3.12 - * Copyright (C) 2010, 2011, 2012, Pyravlos Team
    3.13 - * 
    3.14 - * http://www.strabon.di.uoa.gr/
    3.15 + *  @author Konstantina Bereta <Konstantina.Bereta@di.uoa.gr>
    3.16 + *
    3.17 + *This class implements a basic RDFS inference mechanism on the Geosparql ontology. A RDFHandler is
    3.18 + *used to handle each Geosparql  by applying the RDFS  inferencing rules and producing inferences.
    3.19 + *This was a solution for supporting one of the basic components of Geosparql as Strabon currently lacks in 
    3.20 + *general RDFS inference mechanisms.
    3.21   */
    3.22 +
    3.23  package eu.earthobservatory.runtime.generaldb;
    3.24  
    3.25  import java.io.StringReader;

     4.1 --- a/runtime/src/main/java/eu/earthobservatory/runtime/generaldb/NQuadsParser.java	Mon Nov 05 21:33:07 2012 +0200
     4.2 +++ b/runtime/src/main/java/eu/earthobservatory/runtime/generaldb/NQuadsParser.java	Tue Nov 06 01:13:57 2012 +0200
     4.3 @@ -18,6 +18,20 @@
     4.4  import java.util.regex.Pattern;
     4.5  
     4.6  import javax.naming.StringRefAddr;
     4.7 +/**
     4.8 + * This Source Code Form is subject to the terms of the Mozilla Public
     4.9 + * License, v. 2.0. If a copy of the MPL was not distributed with this
    4.10 + * file, You can obtain one at http://mozilla.org/MPL/2.0/.
    4.11 + *
    4.12 + * Copyright (C) 2012, Pyravlos Team
    4.13 + *
    4.14 + * http://www.strabon.di.uoa.gr/
    4.15 + * 
    4.16 + *  @author Konstantina Bereta <Konstantina.Bereta@di.uoa.gr>
    4.17 + *  
    4.18 + *  based on code provided by ua Shinavier (http://fortytwo.net).  Builds on code by Aduna.
    4.19 + *
    4.20 + */
    4.21  
    4.22  /**
    4.23   * RDFParser implementation for the N-Quads RDF format.
    4.24 @@ -27,7 +41,6 @@
    4.25   * 2) private member variables made public: reader, lineno, subject, predcate, object
    4.26   * 3) private methods: skipWhitespace, skipLine, parseSubject, parsePredicate, parseObject, throwEOFException
    4.27   *
    4.28 - * @author Joshua Shinavier (http://fortytwo.net).  Builds on code by Aduna.
    4.29   */
    4.30  public class NQuadsParser extends ModifiedNTriplesParser {
    4.31      protected Resource context;

     5.1 --- a/runtime/src/main/java/eu/earthobservatory/runtime/generaldb/NQuadsTranslator.java	Mon Nov 05 21:33:07 2012 +0200
     5.2 +++ b/runtime/src/main/java/eu/earthobservatory/runtime/generaldb/NQuadsTranslator.java	Tue Nov 06 01:13:57 2012 +0200
     5.3 @@ -1,3 +1,18 @@
     5.4 +/**
     5.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     5.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     5.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     5.8 + *
     5.9 + * Copyright (C) 2012, Pyravlos Team
    5.10 + *
    5.11 + * http://www.strabon.di.uoa.gr/
    5.12 + * 
    5.13 + *  @author Konstantina Bereta <Konstantina.Bereta@di.uoa.gr>
    5.14 + *
    5.15 + *This class can be considered as a wrapper which makes the conversion from quadruples into valid time
    5.16 + *annotated triples, with valid time annotation being stored as a named graph.
    5.17 + */
    5.18 +
    5.19  package eu.earthobservatory.runtime.generaldb;
    5.20  
    5.21  import java.io.IOException;

     6.1 --- a/runtime/src/main/java/eu/earthobservatory/runtime/generaldb/QuadRDFHandler.java	Mon Nov 05 21:33:07 2012 +0200
     6.2 +++ b/runtime/src/main/java/eu/earthobservatory/runtime/generaldb/QuadRDFHandler.java	Tue Nov 06 01:13:57 2012 +0200
     6.3 @@ -1,3 +1,18 @@
     6.4 +/**
     6.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     6.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     6.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     6.8 + *
     6.9 + * Copyright (C) 2012, Pyravlos Team
    6.10 + *
    6.11 + * http://www.strabon.di.uoa.gr/
    6.12 + * 
    6.13 + *  @author Konstantina Bereta <Konstantina.Bereta@di.uoa.gr>
    6.14 + *  
    6.15 + *  This class handles every quadruple statement by using the fourth element as a named graph and
    6.16 + *  creates another triple to annotate the former statement with valid time in the default graph
    6.17 + *
    6.18 + */
    6.19  package eu.earthobservatory.runtime.generaldb;
    6.20  
    6.21  import java.text.ParseException;