/**
* Returns an SeQueryInfo that can be used to retrieve a set of SeRows from an ArcSDE layer or a
* layer with joins. The SeQueryInfo object lacks the set of column names to fetch. It is the
* responsibility of the calling code to call setColumns(String []) on the returned object to
* specify which properties to fetch.
*
* @param unqualifiedPropertyNames non null, possibly empty, list of property names to fetch
* @return
* @throws IOException
*/
public SeQueryInfo getQueryInfo(final String[] unqualifiedPropertyNames) throws IOException {
assert unqualifiedPropertyNames != null;
String[] tables;
String byClause = null;
final SeSqlConstruct plainSqlConstruct = getSeSqlConstruct();
String where = plainSqlConstruct.getWhere();
try {
if (definitionQuery == null) {
tables = new String[] {this.sdeTable.getQualifiedName()};
} else {
tables = definitionQuery.getConstruct().getTables();
String joinWhere = definitionQuery.getConstruct().getWhere();
if (where == null) {
where = joinWhere;
} else {
where = joinWhere == null ? where : (joinWhere + " AND " + where);
}
try {
byClause = definitionQuery.getByClause();
} catch (NullPointerException e) {
// no-op
}
}
final SeQueryInfo qInfo = new SeQueryInfo();
final SeSqlConstruct sqlConstruct = new SeSqlConstruct();
sqlConstruct.setTables(tables);
if (where != null && where.length() > 0) {
sqlConstruct.setWhere(where);
}
final int queriedAttCount = unqualifiedPropertyNames.length;
if (queriedAttCount > 0) {
String[] sdeAttNames = new String[queriedAttCount];
FilterToSQLSDE sqlEncoder = getSqlEncoder();
for (int i = 0; i < queriedAttCount; i++) {
String attName = unqualifiedPropertyNames[i];
String coldef = sqlEncoder.getColumnDefinition(attName);
sdeAttNames[i] = coldef;
}
qInfo.setColumns(sdeAttNames);
}
qInfo.setConstruct(sqlConstruct);
if (byClause != null) {
qInfo.setByClause(byClause);
}
return qInfo;
} catch (SeException e) {
throw new ArcSdeException(e);
}
}
public static SeQueryInfo parse(ISession session, PlainSelect select)
throws SeException, IOException {
String[] columns = null;
String[] tables = null;
String where = null;
String orderAndOrGroupByClause = null;
if (LOGGER.isLoggable(Level.FINER)) {
LOGGER.finer("building SeQueryInfo to reflect " + select);
}
// obtain needed SeQueryInfo components
columns = getColumns(session, select.getSelectItems());
tables = getTables(select.getFromItems());
Expression whereClause = select.getWhere();
if (whereClause != null) {
where = whereClause.toString();
}
if (select.getGroupByColumnReferences() != null
&& select.getGroupByColumnReferences().size() > 0) {
String gb = PlainSelect.getFormatedList(select.getGroupByColumnReferences(), " GROUP BY ");
orderAndOrGroupByClause = gb;
}
if (select.getOrderByElements() != null && select.getOrderByElements().size() > 0) {
String ob = PlainSelect.orderByToString(select.getOrderByElements());
if (orderAndOrGroupByClause == null) {
orderAndOrGroupByClause = "";
}
orderAndOrGroupByClause += " " + ob;
}
// build SeQueryInfo
SeQueryInfo qinfo = new SeQueryInfo();
qinfo.setColumns(columns);
SeSqlConstruct sqlConstruct = new SeSqlConstruct();
sqlConstruct.setTables(tables);
if (where != null) {
sqlConstruct.setWhere(where);
}
qinfo.setConstruct(sqlConstruct);
if (orderAndOrGroupByClause != null) {
qinfo.setByClause(orderAndOrGroupByClause);
}
return qinfo;
}
