Bug 148951 Wrong error msg when set nonexisted col as group key
Description: Wrong error msg when set nonexisted col as group key Steps to reproduce: 1. Insert a table, bind it to dataset 2. Add a group, input abc as group key which is invalid. 3. Preview Expected result: Friendly error msg to tell user the group key is wrong. Actual result: + Group key "abc" in group 1 cannot depend on column bindings defined in the group lower than itself. data.engine.InvalidGroupKey ( 1 time(s) ) detail : org.eclipse.birt.data.engine.core.DataException: Group key "OUNTR" in group 1 cannot depend on column bindings defined in the group lower than itself.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/i18n/ResourceConstants.java
public final static String INVALID_BOUND_COLUMN_NAME = "data.engine.InvalidBoundColumnName";
	public final static String INVALID_GROUP_KEY = "data.engine.InvalidGroupKey";
	public final static String COLUMN_BINDING_CYCLE = "data.engine.ColumnBindingCycle";
	
	public final static String EXPR_INVALID_COMPUTED_COLUMN= "data.engine.BadCompColExpr";
	
	public final static String WRONG_DATA_TYPE_COMPUTED_COLUMN= "data.engine.CompCol.WrongDataType";
	public final static String WRONG_DATA_TYPE_SCRIPT_RESULT= "data.engine.ScriptResult.WrongDataType";
	
	
	public final static String INVALID_EXPRESSION_IN_FILTER = "data.engine.BadFilterExpr";
	public final static String INVALID_DEFINITION_IN_FILTER = "data.engine.BadFilterDefn";
	public final static String BAD_GROUP_EXPRESSION = "data.engine.BadGroupExpr";
	
	
	public final static String CLOB_OPEN_ERROR = "data.engine.opencloberror";
	public final static String CLOB_READ_ERROR = "data.engine.readcloberror";
	public final static String BLOB_OPEN_ERROR = "data.engine.openbloberror";
	public final static String BLOB_READ_ERROR = "data.engine.readbloberror";
	
	
	public final static String DESTINDEX_OUTOF_RANGE = "data.engine.BadDestIndex";
	public final static String WRITE_TEMPFILE_ERROR = "data.engine.WriteTempError";
	public final static String READ_TEMPFILE_ERROR = "data.engine.ReadTempError";
	
	
	public final static String LOAD_FACTORY_ERROR = "load.factory.error";