Update Readme and refactored MetaData

Author: DanielLeinberger

README.md

@@ -12,6 +12,17 @@ We once wrote this Database Adapter for Sybase 6.0. According to the following c
 The Maven Dependency (found on https://mvnrepository.com/artifact/com.esen.jdbc/sybase-jconn3/6.0 ), should not be used.
 In order to get this Adapter to run, you have to register on their website and manually download the JAR.
 
+Furtermore, this Adapter is not applicable to write to the database. Your are only able to read from it.
+
+The following actions, can't be performed:
+- createTable
+- addColumn
+- alterColumn
+- dropColumn
+- createIndex
+- dropIndex
+- appendEscapeName
+
 ## XDEV-IDE
 XDEV(-IDE) is a visual Java development environment for fast and easy application development (RAD - Rapid Application Development). XDEV differs from other Java IDEs such as Eclipse or NetBeans, focusing on programming through a far-reaching RAD concept. The IDE's main components are a Swing GUI builder, the XDEV Application Framework, and numerous drag-and-drop tools and wizards with which the functions of the framework can be integrated.
 

src/main/java/xdev/db/sybase/jdbc/SybaseJDBCMetaData.java

@@ -217,7 +217,7 @@ private static void fillIndicies(Map<IndexInfo, Set<String>> indexMap, Index[] i
 		indices[i] = new Index(indexInfo.name, indexInfo.type,indexColumns);
 	}
 
-	private static void putColumnNamesInIndexMap(ResultSet rs, Map<IndexInfo, Set<String>> indexMap, Set<String> primaryKeyColumns)
+	private void putColumnNamesInIndexMap(ResultSet rs, Map<IndexInfo, Set<String>> indexMap, Set<String> primaryKeyColumns)
 		throws SQLException
 	{
 		String indexName = rs.getString("INDEX_NAME");
@@ -271,9 +271,6 @@ private void fillColumnsMetaData(
 				column.isAutoIncrement());
 	}
 
-	// XXX not able to get return type of procedures and remarks for all. maybe
-	// getting answer of my question in the forum:
-	// http://www.dbforums.com/sybase/1693489-how-get-stored-procedure-function-infos.html
 	@Override
 	public StoredProcedure[] getStoredProcedures(ProgressMonitor monitor) throws DBException
 	{
@@ -330,18 +327,7 @@ public StoredProcedure[] getStoredProcedures(ProgressMonitor monitor) throws DBE
 							}
 							else if(columnType==2)
 							{
-								paramType = Par
-							}
-							switch(columnType)
-							{
-								case 1:
-									paramType = ParamType.IN;
-									break;
-								case 2:
-									paramType = ParamType.OUT;
-									break;
-								default:
-									break;
+								paramType = ParamType.OUT;
 							}
 						}
 
@@ -379,7 +365,6 @@ else if(columnType==2)
 							);
 							spIndex++;
 							oldName = name;
-							
 						}
 					}
 				}
@@ -398,74 +383,57 @@ else if(columnType==2)
 
 	private DataType sybToJdbc(int dataType, int userType)
 	{
-		// Check following side to add or change parsing DataTypes.
-		// http://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.help.ase_15.0.tables/html/tables/tables46.htm
 		switch(dataType)
 		{
 			case 48:
 				return DataType.TINYINT;
+				
 			case 52:
 				return DataType.SMALLINT;
+				
 			case 56:
 				return DataType.INTEGER;
+				
 			case 191:
 				return DataType.BIGINT;
 
 			case 62:
 				return DataType.FLOAT;
+				
 			case 59:
 				return DataType.REAL;
-				// case Types.DOUBLE:
-				// return DataType.DOUBLE;
+				
 			case 63:
 				return DataType.NUMERIC;
+				
 			case 55:
 				return DataType.DECIMAL;
 
 			case 50:
 				return DataType.BOOLEAN;
 
 			case 47:
-				// case Types.NCHAR:
 				return DataType.CHAR;
-			case 39:
-				// case Types.NVARCHAR:
-				return DataType.VARCHAR;
-				// case Types.LONGVARCHAR:
-				// case Types.LONGNVARCHAR:
-				// return DataType.LONGVARCHAR;
+				
 			case 35:
-				// case Types.CLOB:
-				// case Types.NCLOB:
 				return DataType.CLOB;
 
 			case 45:
 				return DataType.BINARY;
+				
 			case 37:
-				switch(userType)
+				if(userType == 80)
 				{
-					case 4:
-						return DataType.VARBINARY;
-					case 80:
-						return DataType.TIMESTAMP;
-					default:
-						return DataType.VARBINARY;
-						
+					return DataType.TIMESTAMP;
 				}
-				// case Types.LONGVARBINARY:
-				// return DataType.LONGVARBINARY;
-				// case Types.BLOB:
-				// return DataType.BLOB;
-				
+				return DataType.VARBINARY;
+			
 			case 49:
 				return DataType.DATE;
 
 			case 51:
 				return DataType.TIME;
-				
-				// case Types.TIMESTAMP:
-				// return DataType.TIMESTAMP;
-				
+			
 			default:
 				return DataType.VARCHAR;
 		}