private IResultClass mergeResultHint(List modelResultHints, IResultClass meta) {
if (modelResultHints == null || modelResultHints.isEmpty()) return meta;
IResultClass newResultClass;
try {
newResultClass = copyResultClass(meta);
} catch (Exception ex) {
return meta;
}
boolean changed = false;
int count = newResultClass.getFieldCount();
try {
for (int i = 1; i <= count; i++) {
String fieldName = newResultClass.getFieldName(i);
Class odaType = newResultClass.getFieldMetaData(i).getDataType();
for (int j = 0; j < modelResultHints.size(); j++) {
if (((IColumnDefinition) modelResultHints.get(j)).getColumnName().equals(fieldName)) {
int apiType = ((IColumnDefinition) modelResultHints.get(j)).getDataType();
if (apiType > 0 && DataTypeUtil.toApiDataType(odaType) != apiType) {
newResultClass.getFieldMetaData(i).setDataType(DataType.getClass(apiType));
changed = true;
}
break;
}
}
}
} catch (Exception ex) {
}
if (changed) return newResultClass;
else return meta;
}
/**
* Remove old temp computed column metadatas from cache file and add new metadatas.
*
* @throws DataException
*/
private void processResultClass() throws DataException {
List metadataList = new ArrayList();
this.realColumnCount = 0;
ResultFieldMetadata metadata = null;
int i = 0;
for (i = 0; i < rsMeta.getFieldCount(); i++) {
if (!isTempComputedColumn(rsMeta.getFieldName(i + 1))) {
metadata =
new ResultFieldMetadata(
0,
rsMeta.getFieldName(i + 1),
rsMeta.getFieldLabel(i + 1),
rsMeta.getFieldValueClass(i + 1),
rsMeta.getFieldNativeTypeName(i + 1),
rsMeta.isCustomField(i + 1),
rsMeta.getAnalysisType(i + 1),
rsMeta.getAnalysisColumn(i + 1),
rsMeta.isIndexColumn(i + 1),
rsMeta.isCompressedColumn(i + 1));
metadata.setAlias(rsMeta.getFieldAlias(i + 1));
metadataList.add(metadata);
realColumnCount++;
}
}
ComputedColumn tempComputedColumn = null;
for (i = 0; i < addedTempComputedColumn.size(); i++) {
tempComputedColumn = (ComputedColumn) (addedTempComputedColumn.get(i));
metadata =
new ResultFieldMetadata(
0,
tempComputedColumn.getName(),
null,
DataType.getClass(tempComputedColumn.getDataType()),
null,
true,
-1);
metadataList.add(metadata);
}
rsMeta = new ResultClass(metadataList);
}
private IResultClass copyResultClass(IResultClass meta) throws DataException {
List<ResultFieldMetadata> list = new ArrayList<ResultFieldMetadata>();
for (int i = 1; i <= meta.getFieldCount(); i++) {
if (!meta.getFieldName(i).equals(ExprMetaUtil.POS_NAME)) {
int m_driverPosition = meta.getFieldMetaData(i).getDriverPosition();
String m_name = meta.getFieldMetaData(i).getName();
String m_label = meta.getFieldMetaData(i).getLabel();
Class m_dataType = meta.getFieldMetaData(i).getDataType();
String m_nativeTypeName = meta.getFieldMetaData(i).getNativeTypeName();
boolean m_isCustom = meta.getFieldMetaData(i).isCustom();
Class m_driverProvidedDataType = meta.getFieldMetaData(i).getDriverProvidedDataType();
int m_analysisType = meta.getFieldMetaData(i).getAnalysisType();
String m_analysisColumn = meta.getFieldMetaData(i).getAnalysisColumn();
boolean m_indexColumn = meta.getFieldMetaData(i).isIndexColumn();
boolean m_compressedColumn = meta.getFieldMetaData(i).isCompressedColumn();
ResultFieldMetadata metadata =
new ResultFieldMetadata(
m_driverPosition,
m_name,
m_label,
m_dataType,
m_nativeTypeName,
m_isCustom,
m_analysisType,
m_analysisColumn,
m_indexColumn,
m_compressedColumn);
metadata.setDriverProvidedDataType(m_driverProvidedDataType);
metadata.setAlias(meta.getFieldMetaData(i).getAlias());
list.add(metadata);
}
}
IResultClass resultClass = new ResultClass(list);
return resultClass;
}