Bug 151535 Parameters are invisable in Joint Dataset
Trying to use "Joint Dataset" combined with parameters within underlaying Data-Sets (neccessary to achive a filtering where clause for a DateTime Field) Parameter editing ( e.g. in Chart designer) do not show the entire parameter. As specified it should show and let to edit a combination of both underlaying datasets' parameters.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/adapter/ModelDteApiAdapter.java
elmtIter = modelDataSet.paramBindingsIterator( );
			if ( elmtIter != null )
			{
				while ( elmtIter.hasNext( ) )
				{
					ParamBindingHandle modelParamBinding = ( ParamBindingHandle ) elmtIter
							.next( );
					
					paramBindingCandidates.put( modelParamBinding.getParamName( ),
							modelParamBinding.getExpression( ) );
				}
			}
			
			if ( paramBindingCandidates.size( ) > 0 )
			{
				elmtIter = paramBindingCandidates.keySet( ).iterator( );
				while ( elmtIter.hasNext( ) )
				{
					Object paramName = elmtIter.next( );
					assert ( paramName != null && paramName instanceof String );
					String expression = ( String ) paramBindingCandidates
							.get( paramName );
					dteDataSet.addInputParamBinding( newInputParamBinding(
							( String ) paramName, expression ) );
				}
			}
			
			dteDataSet.setCacheRowCount( modelDataSet.getCachedRowCount( ) );
		}