Using hibernate 'List'

hi guys
I am using hibernate with SQL server 2005 database.
I have three tables. The tables are

Project
PROJECT_ID (PK)
Name


Users
USER_ID (PK)
Fname
Lname


Project_Users
PROJECT_ID (PK)
USER_ID (PK)
Role

The requirments are straight forward:

• one project can have multiple users. One user can work on multiple projects.
• When user is searched by UserId, all the projects for that user should be retrieved.
• When Project is searched by projectId, user information need not be fetched. Only projectId and project name are shown.

I am trying to use 'List' to represent the above relationships but want to make sure i am doing right. Since its a bidirectional relationship, i have inverse="true"

My Project.hbm.xml

Code:

---

  <class name="hibernate.entity.Project" table="PROJECT" catalog="eProject">
        <id name="projectId" type="int">
            <column name="PROJECT_ID"/>
            <generator class="assigned" />
        </id>
        <property name="name" type="string">
            <column name="NAME" length="50" not-null="true" unique="true"  />
        </property>
       
        <list name="projectUserses" inverse="true">       
              <key column="PROJECT_ID" not-null="true"/>
            <list-index column="USER_ID"/>         
        <one-to-many class="hibernate.entity.ProjectUsers"/>
          </list>
    </class>

---

User.hbm.xml

Code:

---

<class name="hibernate.entity.Users" table="USERS" catalog="eProject">
        <id name="userId" type="string">
            <column name="USER_ID" length="20" />
            <generator class="assigned" />
        </id>
        <property name="firstName" type="string">
            <column name="FIRST_NAME" length="50" />
        </property>
        <property name="lastName" type="string">
            <column name="LAST_NAME" length="50" />
        </property>
       
        <list name="projectUserses" inverse="true">       
              <key column="USER_ID" not-null="true"/>
            <list-index column="PROJECT_ID"/>         
            <one-to-many class="hibernate.entity.ProjectUsers"/>
        </list>
  </class>

---

projectUser.hbm.xml

Code:

---


<class name="hibernate.entity.ProjectUsers" table="PROJECT_USERS" catalog="eProject">
        <composite-id name="id" class="hibernate.entity.ProjectUsersId">
            <key-property name="projectId" type="int">
                <column name="PROJECT_ID" />
            </key-property>
            <key-property name="userId" type="string">
                <column name="USER_ID" length="20" />
            </key-property>
        </composite-id>
        <many-to-one name="users" class="hibernate.entity.Users" lazy="false" update="false" insert="false" fetch="select">
            <column name="USER_ID" length="20" not-null="true" />
        </many-to-one>
        <many-to-one name="project" class="hibernate.entity.Project" update="false" insert="false" fetch="select">
            <column name="PROJECT_ID" not-null="true" />
        </many-to-one>
        <property name="userRole" type="string">
            <column name="USER_ROLE" length="50" />
        </property>
    </class>

---

Am i doing it correctly? Any help will be greatly appreciated.

thanks