minor database API change

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

@@ -11,6 +11,8 @@
 package com.minres.scviewer.database.sqlite;
 
 import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
@@ -46,7 +48,7 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 	}
 
 	@Override
-	public int getWidth() {
+	public int getRowCount() {
 		if(maxConcurrency==null){
 			StringBuilder sb = new StringBuilder();
 			sb.append("SELECT MAX(concurrencyLevel) as concurrencyLevel FROM ScvTx where stream=");
@@ -126,4 +128,11 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 		return WaveformType.TRANSACTION;
 	}
 
+	/**
+	 * Calculate concurrency.
+	 */
+	public void calculateConcurrency() {
+	}
+
+
 }

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

@@ -99,7 +99,6 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 
 	@Override
 	public void load(IWaveformDb db, File file) throws InputFormatException {
-		dispose();
 		database=new SQLiteDatabase(file.getAbsolutePath(), db);
 		database.setData("TIMERESOLUTION", 1L);
 		SQLiteDatabaseSelectHandler<ScvSimProps> handler = new SQLiteDatabaseSelectHandler<>(ScvSimProps.class, database);

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

@@ -65,8 +65,7 @@ public class Tx implements ITx {
 		return trGenerator;
 	}
 
-	@Override
-	public int getConcurrencyIndex() {
+	int getConcurrencyIndex() {
 		return scvTx.getConcurrencyLevel();
 	}
 

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

@@ -56,4 +56,10 @@ public class TxEvent implements ITxEvent {
 	public WaveformType getType() {
 		return WaveformType.TRANSACTION;
 	}
+
+	@Override
+	public int getRowIndex() {
+		return ((Tx)tx).getConcurrencyIndex();
+	}
+
 }