/**
* Join another table.
*
* @param alias an alias for the table to join
* @return the joined query
*/
@SuppressWarnings("unchecked")
public <U> QueryJoin innerJoin(U alias) {
TableDefinition<T> def = (TableDefinition<T>) db.define(alias.getClass());
SelectTable<T> join = new SelectTable(db, this, alias, false);
def.initSelectObject(join, alias, aliasMap);
joins.add(join);
return new QueryJoin(this, join);
}
@SuppressWarnings("unchecked")
static <T> Query<T> from(Db db, T alias) {
Query<T> query = new Query<T>(db);
TableDefinition<T> def = (TableDefinition<T>) db.define(alias.getClass());
query.from = new SelectTable<T>(db, query, alias, false);
def.initSelectObject(query.from, alias, query.aliasMap);
return query;
}
<T> TableDefinition<T> define(Class<T> clazz) {
TableDefinition<T> def = getTableDefinition(clazz);
if (def == null) {
def = new TableDefinition<T>(clazz);
def.mapFields();
classMap.put(clazz, def);
if (Table.class.isAssignableFrom(clazz)) {
T t = instance(clazz);
Table table = (Table) t;
Define.define(def, table);
}
}
return def;
}
private List<T> select(boolean distinct) {
List<T> result = New.arrayList();
TableDefinition<T> def = from.getAliasDefinition();
SQLStatement stat = getSelectStatement(distinct);
def.appendSelectList(stat);
appendFromWhere(stat);
ResultSet rs = stat.executeQuery();
Statement s = null;
try {
s = rs.getStatement();
while (rs.next()) {
T item = from.newObject();
from.getAliasDefinition().readRow(item, rs);
result.add(item);
}
} catch (SQLException e) {
throw new RuntimeException(e);
} finally {
JdbcUtils.closeSilently(rs);
JdbcUtils.closeSilently(s);
}
return result;
}
private <X> List<X> select(Class<X> clazz, X x, boolean distinct) {
List<X> result = New.arrayList();
TableDefinition<X> def = db.define(clazz);
SQLStatement stat = getSelectStatement(distinct);
def.appendSelectList(stat, this, x);
appendFromWhere(stat);
ResultSet rs = stat.executeQuery();
Statement s = null;
try {
s = rs.getStatement();
while (rs.next()) {
X row = ClassUtils.newObject(clazz);
def.readRow(row, rs);
result.add(row);
}
} catch (SQLException e) {
throw new RuntimeException(e);
} finally {
JdbcUtils.closeSilently(rs);
JdbcUtils.closeSilently(s);
}
return result;
}
