Loan.java

package no.niths.domain.battlestation;

import java.util.ArrayList;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.List;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.persistence.Transient;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlSchemaType;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;

import no.niths.common.constants.DomainConstantNames;
import no.niths.domain.Domain;
import no.niths.domain.adapter.JsonCalendarDeserializerAdapter;
import no.niths.domain.adapter.JsonCalendarSerializerAdapter;
import no.niths.domain.adapter.XmlCalendarAdapter;
import no.niths.domain.school.Student;

import org.codehaus.jackson.annotate.JsonIgnore;
import org.codehaus.jackson.map.annotate.JsonDeserialize;
import org.codehaus.jackson.map.annotate.JsonSerialize;
import org.hibernate.annotations.Cascade;
import org.hibernate.annotations.CascadeType;

/**
 * Domain class for Loan
 * 
 * <p>
 * Loan has these variables: startTime = example 09/03/2012-11:05, endTime =
 * example 12/03/2012-11:05
 * </p>
 * <p>
 * And relations too: Console, Student
 * </p>
 */
@XmlRootElement
@Entity
@Table(name = DomainConstantNames.LOANS)
@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)
@XmlAccessorType(XmlAccessType.FIELD)
public class Loan implements Domain {

    @Transient
    private static final long serialVersionUID = 3498079752190376516L;

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(name = "loan_date")
    @Temporal(TemporalType.TIMESTAMP)
    @XmlSchemaType(name = "date")
    @XmlJavaTypeAdapter(XmlCalendarAdapter.class)
    @XmlElement(name = "starttime")
    private Calendar startTime;

    @Column(name = "return_date")
    @Temporal(TemporalType.TIMESTAMP)
    @XmlSchemaType(name = "date")
    @XmlJavaTypeAdapter(XmlCalendarAdapter.class)
    @XmlElement(name = "endtime")
    private Calendar endTime;

    @OneToMany(fetch = FetchType.LAZY, targetEntity = Console.class)
    @JoinTable(name = "loans_consoles", joinColumns = @JoinColumn(name = "loan_id"), inverseJoinColumns = @JoinColumn(name = "console_id"))
    @Cascade(CascadeType.ALL)
    private List<Console> consoles = new ArrayList<Console>();

    @ManyToOne(fetch = FetchType.LAZY, targetEntity = Student.class)
    @JoinTable(name = "students_loans", joinColumns = @JoinColumn(name = "loan_id"), inverseJoinColumns = @JoinColumn(name = "student_id"))
    @Cascade(CascadeType.ALL)
    private Student student;

    public Loan() {
        this(null, null);
        setConsoles(null);
        setStudent(null);
    }
    
    public Loan(GregorianCalendar starTime) {
        setStartTime(starTime);
    }

    public Loan(GregorianCalendar startTime, GregorianCalendar endTime) {
        setStartTime(startTime);
        setEndTime(endTime);
    }

    public Loan(Long loanId) {
        setId(loanId);
    }

    @Override
    public void setId(Long id) {
        this.id = id;
    }

    @Override
    public Long getId() {
        return id;
    }

    @JsonDeserialize(using = JsonCalendarDeserializerAdapter.class)
    public void setStartTime(Calendar startTime) {
        this.startTime = startTime;
    }

    @JsonSerialize(using = JsonCalendarSerializerAdapter.class)
    public Calendar getStartTime() {
        return startTime;
    }

    @JsonDeserialize(using = JsonCalendarDeserializerAdapter.class)
    public void setEndTime(Calendar endTime) {
        this.endTime = endTime;
    }

    @JsonSerialize(using = JsonCalendarSerializerAdapter.class)
    public Calendar getEndTime() {
        return endTime;
    }

    public void setConsoles(List<Console> consoles) {
        this.consoles = consoles;
    }

    public List<Console> getConsoles() {
        return consoles;
    }

    @JsonSerialize(as = Student.class)
    public Student getStudent() {
        return student;
    }

    public void setStudent(Student student) {
        this.student = student;
    }

    @Override
    public boolean equals(Object that) {
        if (!(that instanceof Loan))
            return false;
        Loan loan = (Loan) that;

        return loan == this || loan.getId() == id;
    }

    @JsonIgnore
    public boolean isEmpty() {
        return (id == null && startTime == null && endTime == null);
    }

    @Override
    public String toString() {

        StringBuffer buffer = new StringBuffer();
        buffer.append(String.format("[%s]", id));
        buffer.append(String.format("[%s]", (startTime == null) ? null
                : startTime.getTime()));
        buffer.append(String.format("[%s]",
                (endTime == null) ? null : endTime.getTime()));
        return buffer.toString();

    }
}