public List<SqlDataItem> getDataItemList() {
List<SqlDataItem> result = new ArrayList<SqlDataItem>();
if (mCurRow == 0 && !mClose) {
try {
next();
} catch (SQLException e) {
Factory.getLogger()
.log(Level.WARNING, "Unable to initialize group's data items children", e);
}
}
if (mNbRows >= 0 && mCurRow == 1) {
try {
ResultSet set = getResultSet();
ResultSetMetaData meta = set.getMetaData();
int count = meta.getColumnCount();
// prepare columns names
String[] names = new String[count];
SqlDataItem[] items = new SqlDataItem[count];
// Create a SQL array loader
SqlArrayLoader loader = new SqlArrayLoader(this);
SqlArray[] arrays = loader.getArrays();
// Get name for each items
for (int col = 1; col <= count; col++) {
// Get the name of the column
names[col - 1] = meta.getColumnName(col);
}
// Fill the array asynchronously
Thread thread = PostTreatmentManager.launchParallelTreatment(loader);
// Create items for each arrays
for (int col = 1; col <= count; col++) {
// Create the data item
try {
items[col - 1] =
new SqlDataItem(
mDataset.getFactoryName(), (SqlGroup) mDataset.getRootGroup(), names[col - 1]);
result.add(items[col - 1]);
items[col - 1].setCachedData(arrays[col - 1], false);
} catch (InvalidArrayTypeException e) {
Factory.getLogger()
.log(
Level.SEVERE,
"Unable to initialize data for the data item: " + names[col - 1],
e);
}
}
} catch (SQLException e) {
Factory.getLogger().log(Level.WARNING, "Unable to initialize group's children", e);
}
}
return result;
}
private ResultSet executeQuery() throws SQLException {
ResultSet result = null;
if (!mInitialized) {
prepareStatement();
}
// Get the SQL connection
SqlConnector sql_connector = mDataset.getSqlConnector();
if (sql_connector != null) {
// Count number of result
if (mNbRows < 0) {
setParams(mStatCount);
ResultSet tmp = mStatCount.executeQuery();
if (tmp.next()) {
mNbRows = tmp.getInt(1);
}
}
// Execute the query
setParams(mStatQuery);
result = mStatQuery.executeQuery();
}
return result;
}
private void prepareStatement() throws SQLException {
// Get the SQL connection
SqlConnector sql_connector = mDataset.getSqlConnector();
if (sql_connector != null) {
try {
Connection connection = sql_connector.getConnection();
// Check statements are still valid
if (mStatQuery == null || mStatQuery.isClosed()) {
// Create the query statement
mStatQuery = connection.prepareStatement(mQuery);
mStatQuery.setFetchSize(1000);
}
if (mStatCount == null || mStatCount.isClosed()) {
// Create the count statement
mStatCount = connection.prepareStatement("SELECT COUNT(*) FROM (" + mQuery + ")");
mStatCount.setFetchSize(1000);
}
} catch (IOException e) {
mNbRows = -1;
Factory.getLogger().log(Level.SEVERE, e.getMessage(), e);
close();
}
}
mInitialized = true;
}