package be.bagofwords.main;
import be.bagofwords.db.DataInterface;
import be.bagofwords.db.DataInterfaceFactory;
import be.bagofwords.db.DatabaseCachingType;
import be.bagofwords.db.application.EmbeddedDBContextFactory;
import be.bagofwords.db.combinator.OverWriteCombinator;
import be.bagofwords.iterator.CloseableIterator;
import be.bagofwords.util.KeyValue;
import org.apache.commons.lang3.time.DateUtils;
import java.text.ParseException;
import java.util.Date;
/**
* Created by Koen Deschacht (koendeschacht@gmail.com) on 9/23/14.
*/
public class ExampleUsage {
public static void main(String[] args) throws ParseException {
//create data interface factory that stores all data in /tmp/myData (This factory is wired with spring)
DataInterfaceFactory dataInterfaceFactory = new EmbeddedDBContextFactory("/tmp/myData").createApplicationContext().getBean(DataInterfaceFactory.class);
//create data interfaces
DataInterface<Long> myLogDataInterface = dataInterfaceFactory.createCountDataInterface("myLoginCounts");
DataInterface<UserObject> myUserDataInterface = dataInterfaceFactory.createDataInterface(DatabaseCachingType.CACHED, "myUsers", UserObject.class, new OverWriteCombinator<UserObject>());
//write data
long userId = 12939;
myLogDataInterface.increaseCount("user_" + userId + "_logged_in");
myUserDataInterface.write(userId, new UserObject("koen", "deschacht", DateUtils.parseDate("1983-04-12", "yyyy-MM-dd")));
//flush data (necessary to make the written data visible on next read)
myLogDataInterface.flush();
myUserDataInterface.flush();
//read data
long numOfLogins = myLogDataInterface.readCount("user_" + userId + "_logged_in");
UserObject user = myUserDataInterface.read(userId);
System.out.println("User " + user.getFirstName() + " " + user.getLastName() + " logged in " + numOfLogins + " times.");
//iterate over all data
CloseableIterator<KeyValue<UserObject>> iterator = myUserDataInterface.iterator();
while (iterator.hasNext()) {
KeyValue<UserObject> curr = iterator.next();
UserObject currUser = curr.getValue();
long currUserId = curr.getKey();
System.out.println("User " + currUser.getFirstName() + " " + currUser.getLastName() + " with id " + currUserId);
}
iterator.close();
//drop all data
myLogDataInterface.dropAllData();
myUserDataInterface.dropAllData();
}
public static class UserObject {
private String firstName;
private String lastName;
private Date dateOfBirth;
public UserObject(String firstName, String lastName, Date dateOfBirth) {
this.firstName = firstName;
this.lastName = lastName;
this.dateOfBirth = dateOfBirth;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public Date getDateOfBirth() {
return dateOfBirth;
}
public void setDateOfBirth(Date dateOfBirth) {
this.dateOfBirth = dateOfBirth;
}
//Constructor used for serialization
public UserObject() {
}
}
}