X-Git-Url: http://secure.phpeclipse.com

diff --git a/archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/model/EntityImpl.java b/archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/model/EntityImpl.java
index f16a1e0..41ffad2 100644
--- a/archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/model/EntityImpl.java
+++ b/archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/model/EntityImpl.java
@@ -11,7 +11,11 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+import com.quantum.adapters.AdapterFactory;
 import com.quantum.adapters.DatabaseAdapter;
+import com.quantum.sql.MultiSQLServer;
+import com.quantum.sql.SQLMetaDataResults;
+import com.quantum.util.sql.SQLStates;
 
 /**
  * This class models a table or view.
@@ -44,12 +48,17 @@ abstract class EntityImpl implements Entity {
     private String type;
     private Bookmark bookmark;
     private Boolean exists = Boolean.TRUE;
+    private boolean isSynonym = false;	// Tells if its a synonym or not
+    // Columns will be cached in this array, as sometimes asking for them to the JDBC driver is very costy
+    // (for example in Oracle when synonyms and remarks are asked for )
+    private Column[] columns = null; 
     
-    public EntityImpl(Bookmark bookmark, String schema, String name, String type) {
+    public EntityImpl(Bookmark bookmark, String schema, String name, String type, boolean isSynonym) {
         this.schema = schema;
         this.name = name;
         this.type = type;
         this.bookmark = bookmark;
+        this.isSynonym = isSynonym;
     }
     public Bookmark getBookmark() {
         return this.bookmark;
@@ -69,71 +78,124 @@ abstract class EntityImpl implements Entity {
     }
     public Column getColumn(String columnName) throws NotConnectedException, SQLException  {
         Column column = null;
-        Column[] columns = getColumns();
-        for (int i = 0, length = (columns == null) ? 0 : columns.length;
+        if (this.columns == null) this.columns = getColumns();
+        for (int i = 0, length = (this.columns == null) ? 0 : this.columns.length;
             column == null && i < length;
             i++) {
-            if (columnName != null && columnName.equals(columns[i].getName())) {
-                column = columns[i];
+            if (columnName != null && columnName.equals(this.columns[i].getName())) {
+                column = this.columns[i];
             }
         }
         return column;
     }
     public Column[] getColumns() throws NotConnectedException, SQLException {
-        
-        Map temp = new HashMap();
+        if (this.columns != null) return this.columns;
         Connection connection = this.bookmark.getConnection();
-        DatabaseMetaData metaData = connection.getMetaData();
-        ResultSet resultSet = metaData.getColumns(null, getSchema(), getName(), null);
-        try {
-	        while (resultSet.next()) {
-	            ColumnImpl column = new ColumnImpl(
-	                this, 
-	                resultSet.getString(COLUMN_METADATA_COLUMN_NAME),
-	                resultSet.getString(COLUMN_METATDATA_TYPE_NAME),
-	                resultSet.getInt(COLUMN_METATDATA_DATA_TYPE),
-	                resultSet.getInt(COLUMN_METADATA_COLUMN_SIZE),
-	                resultSet.getInt(COLUMN_METADATA_DECIMAL_DIGITS),
-	                "YES".equalsIgnoreCase(resultSet.getString(COLUMN_METADATA_IS_NULLABLE)),
-	                resultSet.getInt(COLUMN_METADATA_ORDINAL_POSITION),
-					getComments(
-							resultSet.getString(COLUMN_METADATA_REMARKS),
-							getQualifiedName(), 
-							resultSet.getString(COLUMN_METADATA_COLUMN_NAME))
-	                );
-	            temp.put(column.getName(), column);
-	        }
-        } finally {
-        	resultSet.close();
-        }
-
-        resultSet = metaData.getPrimaryKeys(null, getSchema(), getName());
         try {
-	        while (resultSet.next()) {
-	            String name = resultSet.getString(PRIMARY_KEYS_METADATA_COLUMN_NAME);
-	            short keySequence = resultSet.getShort(PRIMARY_KEYS_METADATA_KEY_SEQ);
-	            ColumnImpl column = (ColumnImpl) temp.get(name);
-	            if (column != null) {
-	                column.setPrimaryKeyOrder(keySequence);
-	            }
-	        }
-	        resultSet.close();
-	        
-	        List columnList = Collections.synchronizedList(
-	            new ArrayList(temp.values()));
-	        Collections.sort(columnList);
-	        return (Column[]) columnList.toArray(new Column[columnList.size()]);
-        } finally {
-        	resultSet.close();
+        	this.columns = getColumnsFromMetaData(connection);
+        	return this.columns;
+        } catch (SQLException e) {
+        	if (SQLStates.ODBC_DRIVER_NOT_CAPABLE.equals(e.getSQLState()) 
+        			&& AdapterFactory.JDBC_ODBC_BRIDGE.equals(
+        					getBookmark().getJDBCDriver().getType())) {
+        		this.columns = getColumnsFromQuery(connection);
+        		return this.columns;
+        	} else {
+        		throw e;
+        	}
         }
+        
     }
     
     /**
+	 * @param connection
+	 * @return
+	 * @throws SQLException
+	 */
+	private Column[] getColumnsFromMetaData(Connection connection) throws SQLException {
+		Map temp = new HashMap();
+		DatabaseMetaData metaData = connection.getMetaData();
+		ResultSet resultSet = metaData.getColumns(null, getSchema(), getName(), null);
+		try {
+		    while (resultSet.next()) {
+		        ColumnImpl column = new ColumnImpl(
+		            this, 
+		            resultSet.getString(COLUMN_METADATA_COLUMN_NAME),
+		            resultSet.getString(COLUMN_METATDATA_TYPE_NAME),
+		            resultSet.getInt(COLUMN_METATDATA_DATA_TYPE),
+		            resultSet.getInt(COLUMN_METADATA_COLUMN_SIZE),
+		            resultSet.getInt(COLUMN_METADATA_DECIMAL_DIGITS),
+		            "YES".equalsIgnoreCase(resultSet.getString(COLUMN_METADATA_IS_NULLABLE)),
+		            resultSet.getInt(COLUMN_METADATA_ORDINAL_POSITION),
+					resultSet.getString(COLUMN_METADATA_REMARKS)
+		            );
+		        temp.put(column.getName(), column);
+		    }
+		} finally {
+			resultSet.close();
+		}
+
+		resultSet = metaData.getPrimaryKeys(null, getSchema(), getName());
+		try {
+		    while (resultSet.next()) {
+		        String name = resultSet.getString(PRIMARY_KEYS_METADATA_COLUMN_NAME);
+		        short keySequence = resultSet.getShort(PRIMARY_KEYS_METADATA_KEY_SEQ);
+		        ColumnImpl column = (ColumnImpl) temp.get(name);
+		        if (column != null) {
+		            column.setPrimaryKeyOrder(keySequence);
+		        }
+		        
+		    }
+		    
+		    List columnList = Collections.synchronizedList(
+		        new ArrayList(temp.values()));
+		    Collections.sort(columnList);
+		    return (Column[]) columnList.toArray(new Column[columnList.size()]);
+		    
+		} finally {
+			resultSet.close();
+		}
+	}
+	
+	/**
+	 * Some databases, (in particular, MS Access under ODBC) aren't terribly friendly
+	 * about supporting metadata.  This method scrapes out the data the old-fashioned way.
+	 * 
+	 * @param temp
+	 * @param connection
+	 * @throws SQLException
+	 */
+	private Column[] getColumnsFromQuery(Connection connection) throws SQLException {
+		List temp = new ArrayList();
+		SQLMetaDataResults results = 
+				(SQLMetaDataResults) MultiSQLServer.getInstance().getMetaData(
+					this, connection);
+		SQLMetaDataResults.Row[] rows = results.getRows();
+		for (int i = 0, length = results.getRowCount(); i < length; i++) {
+		    ColumnImpl column = new ColumnImpl(
+		            this, 
+		            (String) rows[i].get(1),
+		            (String) rows[i].get(2),
+		            ((Integer) rows[i].get(7)).intValue(),
+		            ((Long) rows[i].get(3)).longValue(),
+		            ((Integer) rows[i].get(4)).intValue(),
+		            "Nullable".equalsIgnoreCase((String) rows[i].get(5)),
+		            i+1, "");
+		        temp.add(column);
+		}
+		return (Column[]) temp.toArray(new Column[temp.size()]);
+	}
+	/**
      * Some JDBC drivers (Oracle for example) won't return the comments
      * We recheck with a custom query, if it's defined
 	 * @param iniComment The already got comment
 	 * @param tableName The fully qualified table name
 	 * @param columnName The column name
+	 * 
+	 *  NO LONGER USED, there is a parameter (remarksReporting) in the JDBC connection that makes ORACLE return the
+	 * remarks for tables and columns. Is slower, so an option will be used.
+	 * 
+	 * The function is kept in case other JDBC drivers have the same problem
 	 */
 	private String getComments( String iniComment, String tableName, String columnName) {
 		if (iniComment != null && iniComment.length() > 0) 
@@ -245,4 +307,12 @@ abstract class EntityImpl implements Entity {
 			return this.getQualifiedName().compareTo(that.getQualifiedName());
 		}
 	}
+    
+    /**
+	 * @return Returns the isSynonym.
+	 */
+	public boolean isSynonym() {
+		return isSynonym;
+	}
+	
 }
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