public ProjectionMap build() {
String[] columns = new String[mMap.size()];
mMap.keySet().toArray(columns);
Arrays.sort(columns);
mMap.mColumns = columns;
return mMap;
}
public Builder add(String alias, String expression) {
mMap.putColumn(alias, expression + " AS " + alias);
return this;
}
public Builder addAll(ProjectionMap map) {
for (Entry<String, String> entry : map.entrySet()) {
mMap.putColumn(entry.getKey(), entry.getValue());
}
return this;
}
public Builder add(String column) {
mMap.putColumn(column, column);
return this;
}
