fix serialization issue

plugins/com.minres.scviewer.database.sqlite/src/com/minres/scviewer/database/sqlite/SQLiteDbLoader.java

@@ -38,8 +38,6 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 	
 	private List<RelationType> usedRelationsList = new ArrayList<>();
 	
-	private IWaveformDb db;
-	
 	private ScvSimProps scvSimProps;
 		
 	@Override
@@ -63,7 +61,7 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 		List<IWaveform> streams=new ArrayList<>();
 		try {
 			for(ScvStream scvStream:handler.selectObjects()){
-				TxStream stream = new TxStream(database, db, scvStream);
+				TxStream stream = new TxStream(database, scvStream);
 				stream.setRelationTypeList(usedRelationsList);
 				streams.add(stream);
 			}
@@ -78,7 +76,6 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 	@Override
 	public boolean load(IWaveformDb db, File file) throws InputFormatException {
 		if(file.isDirectory() || !file.exists()) return false;
-		this.db=db;
 		try(FileInputStream fis = new FileInputStream(file)) {
 			byte[] buffer = new byte[x.length];
 			int read = fis.read(buffer, 0, x.length);
@@ -88,7 +85,7 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 		} catch(IOException e) {
 			return false;
 		}
-		database=new SQLiteDatabase(file.getAbsolutePath());
+		database=new SQLiteDatabase(file.getAbsolutePath(), db);
 		database.setData("TIMERESOLUTION", 1L);
 		SQLiteDatabaseSelectHandler<ScvSimProps> handler = new SQLiteDatabaseSelectHandler<>(ScvSimProps.class, database);
 		try {

plugins/com.minres.scviewer.database.sqlite/src/com/minres/scviewer/database/sqlite/Tx.java

@@ -164,7 +164,7 @@ public class Tx implements ITx {
 			List<ScvStream> streams = new SQLiteDatabaseSelectHandler<ScvStream>(ScvStream.class, database,
 						"id="+res.get(0).getStream()).selectObjects();
 			if(streams.size()!=1) return null;
-			TxStream tgtStream = (TxStream) trStream.getDb().getStreamByName(streams.get(0).getName());
+			TxStream tgtStream = (TxStream) database.getWaveformDb().getStreamByName(streams.get(0).getName());
 			Tx that = (Tx) tgtStream.getTransactions().get(otherId);
 			if(outgoing)
 				return new TxRelation(trStream.getRelationType(rel.getName()), this, that);

plugins/com.minres.scviewer.database.sqlite/src/com/minres/scviewer/database/sqlite/TxStream.java

@@ -41,8 +41,6 @@ public class TxStream extends HierNode implements IWaveform {
 
 	private String fullName;
 
-	private IWaveformDb db;
-
 	private ScvStream scvStream;
 
 	private TreeMap<Integer, TxGenerator> generators;
@@ -55,17 +53,11 @@ public class TxStream extends HierNode implements IWaveform {
 
 	private List<RelationType> usedRelationsList;
 
-	public TxStream(IDatabase database, IWaveformDb waveformDb, ScvStream scvStream) {
+	public TxStream(IDatabase database, ScvStream scvStream) {
 		super(scvStream.getName());
 		this.database=database;
 		fullName=scvStream.getName();
 		this.scvStream=scvStream;
-		db=waveformDb;
-	}
-
-	@Override
-	public IWaveformDb getDb() {
-		return db;
 	}
 
 	@Override

plugins/com.minres.scviewer.database.sqlite/src/com/minres/scviewer/database/sqlite/db/IDatabase.java

@@ -16,6 +16,8 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.Statement;
 
+import com.minres.scviewer.database.IWaveformDb;
+
 /**
  *
  * Creates a connection to a database.
@@ -58,4 +60,6 @@ public interface IDatabase {
 	public void setData(String name, Object value);
 	
 	public Object getData(String name); 
+	
+	public IWaveformDb getWaveformDb();
 } 

plugins/com.minres.scviewer.database.sqlite/src/com/minres/scviewer/database/sqlite/db/SQLiteDatabase.java

@@ -20,10 +20,14 @@ import java.sql.SQLException;
 import java.sql.Statement;
 import java.util.HashMap;
 
+import com.minres.scviewer.database.IWaveformDb;
+
 public class SQLiteDatabase implements IDatabase {
 
 	protected String dbFileName;
 	
+	protected IWaveformDb waveformDb;
+	
 	protected HashMap<String, Object> props;
 	
     static {
@@ -39,9 +43,10 @@ public class SQLiteDatabase implements IDatabase {
 		}
     }
     
-	public SQLiteDatabase(String dbFileName) {
+	public SQLiteDatabase(String dbFileName, IWaveformDb waveformDb) {
 		super();
 		this.dbFileName = dbFileName;
+		this.waveformDb = waveformDb;
 		props = new HashMap<String, Object>();
 	}
 
@@ -89,4 +94,9 @@ public class SQLiteDatabase implements IDatabase {
 		return props.get(name);
 	}
 
+	@Override
+	public IWaveformDb getWaveformDb() {
+		return waveformDb;
+	}
+
 }

plugins/com.minres.scviewer.database.text/src/com/minres/scviewer/database/text/TextDbLoader.java

@@ -96,21 +96,14 @@ public class TextDbLoader implements IWaveformDbLoader{
 				parseInput(gzipped?new GZIPInputStream(new FileInputStream(file)):new FileInputStream(file));
 				for(IWaveform stream: streams){ stream.getWidth(); }
 				return true;
-			}
+			} else 
-		} catch (IndexOutOfBoundsException e) {
 				return false;
-		} catch (IllegalArgumentException e) {
+		} catch(IllegalArgumentException|ArrayIndexOutOfBoundsException e) {
-			return false;
+		} catch(Throwable e) {
-		} catch(EOFException e) {
-			return true;
-		} catch(Exception e) {
 			System.out.println("---->>> Exception "+e.toString()+" caught while loading database");
 			e.printStackTrace();
-		} catch(Error e) {
-			System.out.println("---->>> Exception "+e.toString()+" caught while loading database. StackTrace following... ");
-			e.printStackTrace();
 		}
-		return false;
+		return true;
 	}
 
 	private static boolean isTxfile(InputStream istream) {

plugins/com.minres.scviewer.database.text/src/com/minres/scviewer/database/text/TxStream.java

@@ -24,7 +24,6 @@ import com.minres.scviewer.database.EventKind;
 import com.minres.scviewer.database.HierNode;
 import com.minres.scviewer.database.IEvent;
 import com.minres.scviewer.database.IWaveform;
-import com.minres.scviewer.database.IWaveformDb;
 import com.minres.scviewer.database.WaveformType;
 import com.minres.scviewer.database.tx.ITx;
 import com.minres.scviewer.database.tx.ITxEvent;
@@ -39,8 +38,6 @@ class TxStream extends HierNode implements IWaveform, Serializable {
 
 	private Long id;
 			
-	private IWaveformDb database;
-		
 	private ArrayList<ITxGenerator> generators = new ArrayList<ITxGenerator>();
 	
 	private int maxConcurrency;
@@ -51,7 +48,6 @@ class TxStream extends HierNode implements IWaveform, Serializable {
 	TxStream(TextDbLoader loader, Long id, String name, String kind){
 		super(name);
 		this.id=id;
-		this.database=loader.db;
 		this.maxConcurrency=0;
 		//events = new TreeMap<Long, List<ITxEvent>>()
 		events = (BTreeMap<Long, IEvent[]>) loader.mapDb.treeMap(name).keySerializer(Serializer.LONG).createOrOpen();
@@ -61,11 +57,6 @@ class TxStream extends HierNode implements IWaveform, Serializable {
 		return generators;
 	}
 
-	@Override
-	public IWaveformDb getDb() {
-		return database;
-	}
-
 	@Override
 	public int getWidth() {
 		if(maxConcurrency==0){

plugins/com.minres.scviewer.database.vcd/src/com/minres/scviewer/database/vcd/VCDDbLoader.java

@@ -41,9 +41,6 @@ public class VCDDbLoader implements IWaveformDbLoader, IVCDDatabaseBuilder {
 	/** The Constant TIME_RES. */
 	private static final Long TIME_RES = 1000L; // ps
 
-	/** The db. */
-	private IWaveformDb db;
-
 	/** The module stack. */
 	private ArrayDeque<String> moduleStack;
 
@@ -72,7 +69,6 @@ public class VCDDbLoader implements IWaveformDbLoader, IVCDDatabaseBuilder {
 	@Override
 	public boolean load(IWaveformDb db, File file) throws InputFormatException {
 		if(file.isDirectory() || !file.exists()) return false;
-		this.db=db;
 		this.maxTime=0;
 		boolean res = false;
 		try {
@@ -159,10 +155,10 @@ public class VCDDbLoader implements IWaveformDbLoader, IVCDDatabaseBuilder {
 		String netName = moduleStack.isEmpty()? name: moduleStack.peek()+"."+name;
 		int id = signals.size();
 		if(width==0) {
-			signals.add( i<0 ? new VCDSignal<DoubleVal>(db, id, netName, width) :
+			signals.add( i<0 ? new VCDSignal<DoubleVal>(id, netName, width) :
 				new VCDSignal<DoubleVal>((VCDSignal<DoubleVal>)signals.get(i), id, netName));			
 		} else if(width>0){
-			signals.add( i<0 ? new VCDSignal<BitVector>(db, id, netName, width) :
+			signals.add( i<0 ? new VCDSignal<BitVector>(id, netName, width) :
 				new VCDSignal<BitVector>((VCDSignal<BitVector>)signals.get(i), id, netName));
 		}
 		return id;

plugins/com.minres.scviewer.database.vcd/src/com/minres/scviewer/database/vcd/VCDSignal.java

@@ -28,21 +28,18 @@ public class VCDSignal<T extends IEvent> extends HierNode implements IWaveform {
 
 	private final int width;
 
-	private IWaveformDb db;
-
 	private NavigableMap<Long, IEvent[]> values;
 	
-	public VCDSignal(IWaveformDb db, String name) {
+	public VCDSignal(String name) {
-		this(db, 0, name, 1);
+		this(0, name, 1);
 	}
 
-	public VCDSignal(IWaveformDb db, int id, String name) {
+	public VCDSignal(int id, String name) {
-		this(db, id,name,1);
+		this(id,name,1);
 	}
 
-	public VCDSignal(IWaveformDb db, int id, String name, int width) {
+	public VCDSignal(int id, String name, int width) {
 		super(name);
-		this.db=db;
 		fullName=name;
 		this.id=id;
 		this.width=width;
@@ -55,7 +52,6 @@ public class VCDSignal<T extends IEvent> extends HierNode implements IWaveform {
 		this.id=id;
 		this.width=o.width;
 		this.values=o.values;
-		this.db=o.getDb();
 	}
 
 	@Override
@@ -72,11 +68,6 @@ public class VCDSignal<T extends IEvent> extends HierNode implements IWaveform {
 		return id;
 	}
 
-	@Override
-	public IWaveformDb getDb() {
-		return db;
-	}
-
 	public void addSignalChange(Long time, T value){
 		if(values.containsKey(time)) {
 			IEvent[] oldV = values.get(time);

plugins/com.minres.scviewer.database/src/com/minres/scviewer/database/IWaveform.java

@@ -16,8 +16,6 @@ public interface IWaveform extends IHierNode {
 
 	public Long getId();
 
-	public IWaveformDb getDb();
-	
 	public boolean isSame(IWaveform other);
 
 	public NavigableMap<Long, IEvent[]> getEvents();

plugins/com.minres.scviewer.database/src/com/minres/scviewer/database/internal/WaveformDb.java

@@ -26,12 +26,7 @@ import com.minres.scviewer.database.IWaveformDb;
 import com.minres.scviewer.database.IWaveformDbLoader;
 import com.minres.scviewer.database.RelationType;
 
-public class WaveformDb extends HierNode implements IWaveformDb, Serializable {
+public class WaveformDb extends HierNode implements IWaveformDb {
-
-	/**
-	 * 
-	 */
-	private static final long serialVersionUID = 3274692080405194894L;
 
 	private static List<IWaveformDbLoader> loaders=new LinkedList<>();