app/src/main/java/io/github/polysmee/database/Course.java
package io.github.polysmee.database;
import io.github.polysmee.database.databaselisteners.valuelisteners.StringSetValueListener;
public class Course {
public static void getAllCourses_Once_AndThen(StringSetValueListener valueListener) {
DatabaseSingleton
.getAdaptedInstance()
.getReference("courses")
.addListenerForSingleValueEvent(valueListener);
}
}