mapping

gistfile1.txt

package com.abiquo.scheduler;

import java.util.ArrayList;
import java.util.List;

import javax.persistence.Basic;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.persistence.Transient;

@Entity
@Table(name = "machine", schema = "examples")
public class Machine
{
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Integer id;

    @Basic
    private String name;

    @Basic
    private Integer cpuTotal;

    @OneToMany(mappedBy = "machine", cascade = CascadeType.ALL)
    private List<ComputeResources> computeResources = new ArrayList<ComputeResources>();

    @Transient
    private List<Datastore> datastores = new ArrayList<Datastore>();

    @Transient
    private Integer cpuUsed;

    public Integer getId()
    {
        return id;
    }

    public void setId(final Integer id)
    {
        this.id = id;
    }

    public Integer getCpuTotal()
    {
        return cpuTotal;
    }

    public void setCpuTotal(final Integer cpuTotal)
    {
        this.cpuTotal = cpuTotal;
    }

    public String getName()
    {
        return name;
    }

    public void setName(final String name)
    {
        this.name = name;
    }

    public List<ComputeResources> getComputeResources()
    {
        return computeResources;
    }

    public void setComputeResources(final List<ComputeResources> computeResources)
    {
        this.computeResources = computeResources;
    }

    public Integer getCpuUsed()
    {
        return cpuUsed =
            computeResources != null && !computeResources.isEmpty() ? computeResources.get(0)
                .getCpuUsed() : null;
    }

    public void setCpuUsed(final Integer cpuUsed)
    {
        this.cpuUsed = cpuUsed;
    }

    public List<Datastore> getDatastores()
    {
        return datastores;
    }

    public void setDatastores(final List<Datastore> datastores)
    {
        for (Datastore d : datastores)
        {
            ComputeResources r = new ComputeResources(this, d);
            computeResources.add(r);
        }
        this.datastores = datastores;
    }

    public void addDatastore(final Datastore datastore)
    {
        ComputeResources r = new ComputeResources(this, datastore);
        computeResources.add(r);
        this.datastores.add(datastore);
    }
}

package com.abiquo.scheduler;

import javax.persistence.Basic;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToOne;
import javax.persistence.Table;
import javax.persistence.Transient;

@Entity
@Table(name = "datastore", schema = "examples")
public class Datastore
{
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Integer id;

    @Basic
    private String name;

    @Basic
    private int hdTotal;

    @Transient
    private Integer hdUsed;

    @OneToOne(mappedBy = "datastore", cascade = CascadeType.ALL)
    private ComputeResources computeResources;

    @Transient
    private Machine machine;

    public int getHdTotal()
    {
        return hdTotal;
    }

    public void setHdTotal(final int hdTotal)
    {
        this.hdTotal = hdTotal;
    }

    public Integer getId()
    {
        return id;
    }

    public void setId(final Integer id)
    {
        this.id = id;
    }

    public String getName()
    {
        return name;
    }

    public void setName(final String name)
    {
        this.name = name;
    }

    public ComputeResources getComputeResources()
    {
        return computeResources;
    }

    public void setComputeResources(final ComputeResources computeResources)
    {
        this.computeResources = computeResources;
    }

    public Integer getHdUsed()
    {
        return hdUsed = computeResources != null ? computeResources.getHdUsed() : null;
    }

    public Machine getMachine()
    {
        return machine;
    }

    public void setMachine(final Machine machine)
    {
        this.computeResources = new ComputeResources(machine, this);
        this.machine = machine;
    }
}

package com.abiquo.scheduler;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Embeddable;
import javax.persistence.EmbeddedId;
import javax.persistence.Entity;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;

@Entity
@Table(name = "compute_resources")
public class ComputeResources
{
    @Embeddable
    public static class Id implements Serializable
    {
        /**
         * 
         */
        private static final long serialVersionUID = 1622028659861358483L;

        @Column(name = "machine_id")
        private Integer machineId;

        @Column(name = "datastore_id")
        private Integer datastoreId;

        public Id()
        {
        }

        public Id(final Integer machineId, final Integer datastoreId)
        {
            this.machineId = machineId;
            this.datastoreId = datastoreId;
        }

        @Override
        public int hashCode()
        {
            final int prime = 31;
            int result = 1;
            result = prime * result + (datastoreId == null ? 0 : datastoreId.hashCode());
            result = prime * result + (machineId == null ? 0 : machineId.hashCode());
            return result;
        }

        @Override
        public boolean equals(final Object obj)
        {
            if (this == obj)
            {
                return true;
            }
            if (obj == null)
            {
                return false;
            }
            if (getClass() != obj.getClass())
            {
                return false;
            }
            Id other = (Id) obj;
            if (datastoreId == null)
            {
                if (other.datastoreId != null)
                {
                    return false;
                }
            }
            else if (!datastoreId.equals(other.datastoreId))
            {
                return false;
            }
            if (machineId == null)
            {
                if (other.machineId != null)
                {
                    return false;
                }
            }
            else if (!machineId.equals(other.machineId))
            {
                return false;
            }
            return true;
        }
    }

    @EmbeddedId
    private Id id;

    @Column(name = "cpuUsed", updatable = false)
    private Integer cpuUsed;

    @Column(name = "hdUsed", updatable = false)
    private Integer hdUsed;

    @ManyToOne
    @JoinColumn(name = "machine_id", insertable = false, updatable = false)
    private Machine machine;

    @ManyToOne
    @JoinColumn(name = "datastore_id", insertable = false, updatable = false)
    private Datastore datastore;

    public ComputeResources()
    {
        super();
        this.id = new Id();
    }

    public ComputeResources(final Machine machine, final Datastore datastore)
    {
        super();
        this.id = new Id(machine.getId(), datastore.getId());

        this.cpuUsed = 0;
        this.hdUsed = 0;

        this.machine = machine;
        this.datastore = datastore;

        this.machine.getComputeResources().add(this);
        this.datastore.setComputeResources(this);
    }

    public Integer getCpuUsed()
    {
        return cpuUsed;
    }

    public void setCpuUsed(final Integer cpuUsed)
    {
        this.cpuUsed = cpuUsed;
    }

    public Machine getMachine()
    {
        return machine;
    }

    public void setMachine(final Machine machine)
    {
        this.machine = machine;
    }

    public Integer getHdUsed()
    {
        return hdUsed;
    }

    public void setHdUsed(final Integer hdUsed)
    {
        this.hdUsed = hdUsed;
    }

    public Datastore getDatastore()
    {
        return datastore;
    }

    public void setDatastore(final Datastore datastore)
    {
        this.datastore = datastore;
    }
}