///////////////////////////////////////////////////////////////////////////////
// File : EJB_PRODUCTBean.java
// Creation : 2002.04.29 (generated by ejen 1.0.0)
package org.ejb.test;
import javax.ejb.EntityBean;
import javax.ejb.EntityContext;
import javax.ejb.CreateException;
import javax.ejb.EJBException;
import javax.ejb.ObjectNotFoundException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Vector;
import java.util.Collection;
import javax.naming.InitialContext;
import javax.naming.NamingException;
/**
* Entity bean class that maps the PRODUCT table.
* <br><i>Ejen EJB 1.1 (BMP) demonstration</i>
* @version 1.0
* @author (unknown)
* @see org.ejb.test.PRODUCTValues
* @see org.ejb.test.EJB_PRODUCTHome
* @see org.ejb.test.EJB_PRODUCT
* @see org.ejb.test.EJB_PRODUCT_PK
* @see org.ejb.test.EJB_TABLEAbstractBean
*/
public class EJB_PRODUCTBean extends EJB_TABLEAbstractBean {
/** INSERT statement used in ejbCreate method (no sequence field, if any) */
protected static final String SQL_INSERT = "INSERT INTO PRODUCT (NAME,COST) VALUES (?,?)";
/** SELECT statement used in ejbCreate method (excuted once to find the sequence value) */
protected static final String SQL_SELECT_SEQUENCE = "SELECT MAX(ID) FROM PRODUCT";
/** SELECT statement used in ejbLoad method */
protected static final String SQL_SELECT = "SELECT NAME,COST FROM PRODUCT WHERE ID=?";
/** UPDATE statement used in ejbStore method */
protected static final String SQL_UPDATE = "UPDATE PRODUCT SET NAME=?,COST=? WHERE ID=?";
/** DELETE statement used in ejbRemove method */
protected static final String SQL_DELETE = "DELETE FROM PRODUCT WHERE ID=?";
/** SELECT statement used in ejbFindByPrimaryKey method */
protected static final String SQL_SELECT_FIND_BY_PRIMARY_KEY = "SELECT ID FROM PRODUCT WHERE ID=?";
/** SELECT statement used in ejbFindAll method */
protected static final String SQL_SELECT_FIND_ALL = "SELECT ID FROM PRODUCT";
/** Full JNDI name of the DataSource */
protected static final String DATA_SOURCE_JNDI_NAME = "java:/DefaultDS";
/** Values object variable */
protected PRODUCTValues _values = null;
/** Autoincremented sequence value (shared by all EJB_PRODUCTBean objects) */
protected static int _sequence = -1;
/**
* Default constructor (empty).
*/
public EJB_PRODUCTBean() {}
/**
* Returns a values object that contains all PRODUCT fields
* (except primary key fields).
* @return object values that contains all PRODUCT fields
* (except primary key fields).
*/
public PRODUCTValues getAll() {
return _values;
}
/**
* Sets a values object that contains all PRODUCT
* fields for update (except primary key fields).
* @param PRODUCTValues values object that contains all
* PRODUCT fields for update (except primary key fields).
*/
public void setAll(PRODUCTValues values) {
_values = values;
_dirty = true;
}
/**
* Creates a new PRODUCT row.
* @param values a values object that contains values for the
* PRODUCT row to be created.
* @return remote interface of the created entity bean (that maps the new row).
* @throws javax.ejb.CreateException row count for INSERT != 1
* or unable to get the sequence value.
* @throws javax.ejb.EJBException SQL error.
*/
public EJB_PRODUCT_PK ejbCreate(PRODUCTValues values) throws CreateException {
_values = values;
Connection conn = null;
PreparedStatement pstmt = null;
try {
conn = _dataSource.getConnection();
pstmt = conn.prepareStatement(SQL_INSERT);
pstmt.setString(1, _values.getName());
pstmt.setBigDecimal(2, _values.getCost());
if (pstmt.executeUpdate() != 1)
throw new CreateException("Failed to create new PRODUCT row");
if (_sequence == -1) {
_sequence = getSequenceValue(conn, SQL_SELECT_SEQUENCE);
if (_sequence == -1)
throw new CreateException("Failed to get current sequence value from PRODUCT");
} else
++_sequence;
return new EJB_PRODUCT_PK(_sequence);
} catch(SQLException e) {
throw new EJBException(e);
} finally {
try { if (pstmt != null) pstmt.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (conn != null) conn.close(); } catch (SQLException e) { e.printStackTrace(); }
}
}
/**
* Post-creation method (empty).
* @param values a values object that contains values for the newly
* created PRODUCT row.
*/
public void ejbPostCreate(PRODUCTValues values) {}
/**
* Loads a PRODUCT row.
* @throws javax.ejb.EJBException SQL error or empty ResultSet.
*/
public void ejbLoad() {
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
EJB_PRODUCT_PK pk = (EJB_PRODUCT_PK)(_entityContext.getPrimaryKey());
try {
conn = _dataSource.getConnection();
pstmt = conn.prepareStatement(SQL_SELECT);
pstmt.setInt(1, pk.getId());
rs = pstmt.executeQuery();
if (!rs.next())
throw new EJBException("Failed to load PRODUCT row with pk:" + pk);
if (_values == null)
_values = new PRODUCTValues(rs.getString(1), rs.getBigDecimal(2));
else {
_values.setName(rs.getString(1));
_values.setCost(rs.getBigDecimal(2));
}
} catch(SQLException e) {
throw new EJBException(e);
} finally {
try { if (rs != null) rs.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (pstmt != null) pstmt.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (conn != null) conn.close(); } catch (SQLException e) { e.printStackTrace(); }
}
}
/**
* Updates a PRODUCT row.
* @throws javax.ejb.EJBException SQL error or row count for UPDATE != 1.
*/
public void ejbStore() {
if (!_dirty)
return;
Connection conn = null;
PreparedStatement pstmt = null;
EJB_PRODUCT_PK pk = (EJB_PRODUCT_PK)(_entityContext.getPrimaryKey());
try {
conn = _dataSource.getConnection();
pstmt = conn.prepareStatement(SQL_UPDATE);
pstmt.setString(1, _values.getName());
pstmt.setBigDecimal(2, _values.getCost());
pstmt.setInt(3, pk.getId());
if (pstmt.executeUpdate() != 1)
throw new EJBException("Failed to update PRODUCT row with pk:" + pk);
_dirty = false;
} catch(SQLException e) {
throw new EJBException(e);
} finally {
try { if (pstmt != null) pstmt.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (conn != null) conn.close(); } catch (SQLException e) { e.printStackTrace(); }
}
}
/**
* Deletes a PRODUCT row.
* @throws javax.ejb.EJBException SQL error or row count for DELETE != 1.
*/
public void ejbRemove() {
Connection conn = null;
PreparedStatement pstmt = null;
EJB_PRODUCT_PK pk = (EJB_PRODUCT_PK)(_entityContext.getPrimaryKey());
try {
conn = _dataSource.getConnection();
pstmt = conn.prepareStatement(SQL_DELETE);
pstmt.setInt(1, pk.getId());
if (pstmt.executeUpdate() != 1)
throw new EJBException("Failed to delete PRODUCT row with pk:" + pk);
} catch(SQLException e) {
throw new EJBException(e);
} finally {
try { if (pstmt != null) pstmt.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (conn != null) conn.close(); } catch (SQLException e) { e.printStackTrace(); }
}
}
/**
* Finds a single row, provided a primary key.
* @param pk the primary key that indentifies the row to retrieve.
* @return the primary key (same as parameter pk).
* @throws javax.ejb.ObjectNotFoundException no row with this primary key.
* @throws javax.ejb.EJBException SQL error.
*/
public EJB_PRODUCT_PK ejbFindByPrimaryKey(EJB_PRODUCT_PK pk) throws ObjectNotFoundException {
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
try {
conn = _dataSource.getConnection();
pstmt = conn.prepareStatement(SQL_SELECT_FIND_BY_PRIMARY_KEY);
pstmt.setInt(1, pk.getId());
rs = pstmt.executeQuery();
if (!rs.next())
throw new ObjectNotFoundException("No PRODUCT row with pk:" + pk);
return pk;
} catch(SQLException e) {
throw new EJBException(e);
} finally {
try { if (rs != null) rs.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (pstmt != null) pstmt.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (conn != null) conn.close(); } catch (SQLException e) { e.printStackTrace(); }
}
}
/**
* Finds rows by id.
* @param id value of the ID column.
* @return primary keys collection of the founded rows.
* @throws javax.ejb.EJBException SQL error.
*/
public Collection ejbFindById(int id) {
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
try {
conn = _dataSource.getConnection();
pstmt = conn.prepareStatement(SQL_SELECT_FIND_ALL + " WHERE ID=?");
pstmt.setInt(1, id);
rs = pstmt.executeQuery();
Vector v = new Vector(128);
while (rs.next())
v.addElement(new EJB_PRODUCT_PK(rs.getInt(1)));
return v;
} catch(SQLException e) {
throw new EJBException(e);
} finally {
try { if (rs != null) rs.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (pstmt != null) pstmt.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (conn != null) conn.close(); } catch (SQLException e) { e.printStackTrace(); }
}
}
/**
* Finds rows by name.
* @param name value of the NAME column.
* @return primary keys collection of the founded rows.
* @throws javax.ejb.EJBException SQL error.
*/
public Collection ejbFindByName(java.lang.String name) {
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
try {
conn = _dataSource.getConnection();
pstmt = conn.prepareStatement(SQL_SELECT_FIND_ALL + " WHERE NAME=?");
pstmt.setString(1, name);
rs = pstmt.executeQuery();
Vector v = new Vector(128);
while (rs.next())
v.addElement(new EJB_PRODUCT_PK(rs.getInt(1)));
return v;
} catch(SQLException e) {
throw new EJBException(e);
} finally {
try { if (rs != null) rs.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (pstmt != null) pstmt.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (conn != null) conn.close(); } catch (SQLException e) { e.printStackTrace(); }
}
}
/**
* Finds rows by cost.
* @param cost value of the COST column.
* @return primary keys collection of the founded rows.
* @throws javax.ejb.EJBException SQL error.
*/
public Collection ejbFindByCost(java.math.BigDecimal cost) {
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
try {
conn = _dataSource.getConnection();
pstmt = conn.prepareStatement(SQL_SELECT_FIND_ALL + " WHERE COST=?");
pstmt.setBigDecimal(1, cost);
rs = pstmt.executeQuery();
Vector v = new Vector(128);
while (rs.next())
v.addElement(new EJB_PRODUCT_PK(rs.getInt(1)));
return v;
} catch(SQLException e) {
throw new EJBException(e);
} finally {
try { if (rs != null) rs.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (pstmt != null) pstmt.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (conn != null) conn.close(); } catch (SQLException e) { e.printStackTrace(); }
}
}
/**
* Finds all rows in the PRODUCT table.
* @return primary keys collection of the founded rows.
* @throws javax.ejb.EJBException SQL error.
*/
public Collection ejbFindAll() {
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
try {
conn = _dataSource.getConnection();
pstmt = conn.prepareStatement(SQL_SELECT_FIND_ALL);
rs = pstmt.executeQuery();
Vector v = new Vector(128);
while (rs.next())
v.addElement(new EJB_PRODUCT_PK(rs.getInt(1)));
return v;
} catch(SQLException e) {
throw new EJBException(e);
} finally {
try { if (rs != null) rs.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (pstmt != null) pstmt.close(); } catch (SQLException e) { e.printStackTrace(); }
try { if (conn != null) conn.close(); } catch (SQLException e) { e.printStackTrace(); }
}
}
/**
* Returns the full DataSource JNDI name.
* @return the JNDI name.
*/
protected String getDataSourceJNDIName() {
return DATA_SOURCE_JNDI_NAME;
}
}
EJB_PRODUCTBean.html
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