From: Roland Häder <roland@mxchange.org>
Date: Thu, 28 Apr 2016 08:30:54 +0000 (+0200)
Subject: implemented business method findCustomerById()
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=d6f4881c020196c87ba309d33a4048b5936675ee;p=pizzaservice-ejb.git

implemented business method findCustomerById()

Signed-off-by: Roland Häder <roland@mxchange.org>
---

diff --git a/src/java/org/mxchange/pizzaapplication/model/customer/PizzaCustomerSessionBean.java b/src/java/org/mxchange/pizzaapplication/model/customer/PizzaCustomerSessionBean.java
index 0229a31..1bcbb02 100644
--- a/src/java/org/mxchange/pizzaapplication/model/customer/PizzaCustomerSessionBean.java
+++ b/src/java/org/mxchange/pizzaapplication/model/customer/PizzaCustomerSessionBean.java
@@ -21,6 +21,7 @@ import javax.ejb.Stateless;
 import javax.persistence.NoResultException;
 import javax.persistence.Query;
 import org.mxchange.jcustomercore.exceptions.CustomerAlreadyRegisteredException;
+import org.mxchange.jcustomercore.exceptions.CustomerNotFoundException;
 import org.mxchange.jcustomercore.model.customer.Customer;
 import org.mxchange.pizzaaplication.database.BasePizzaDatabaseBean;
 
@@ -42,6 +43,48 @@ public class PizzaCustomerSessionBean extends BasePizzaDatabaseBean implements P
 		throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. //NOI18N
 	}
 
+	@Override
+	public Customer findCustomerById (final Long customerId) throws CustomerNotFoundException {
+		// Trace message
+		this.getLoggerBeanLocal().logTrace(MessageFormat.format("findCustomerById: customerId={0} - CALLED!", customerId)); //NOI18N
+
+		// The parameter must be valid
+		if (null == customerId) {
+			// Throw NPE
+			throw new NullPointerException("customerId is null"); //NOI18N
+		} else if (customerId < 1) {
+			// Invalid id number
+			throw new IllegalArgumentException(MessageFormat.format("customerId={0} - is not valid", customerId)); //NOI18N
+		}
+
+		// Init instance
+		Customer customer;
+
+		// Get named query
+		Query query = this.getEntityManager().createNamedQuery("SearchCustomerById", Customer.class); //NOI18N
+
+		// Set customer id
+		query.setParameter("customerId", customerId); //NOI18N
+
+		// Try to find it
+		try {
+			// Get single result
+			customer = (Customer) query.getSingleResult();
+
+			// Debug message (success)
+			this.getLoggerBeanLocal().logDebug(MessageFormat.format("findCustomerById: Found customer={0} with customerId={1}", customer, customerId)); //NOI18N
+		} catch (final NoResultException ex) {
+			// Not found, throw again
+			throw new CustomerNotFoundException(customerId, ex);
+		}
+
+		// Trace message
+		this.getLoggerBeanLocal().logTrace(MessageFormat.format("findCustomerById; customer={0} - EXIT!", customer)); //NOI18N
+
+		// Return found instance
+		return customer;
+	}
+
 	@Override
 	public boolean isReqistered (final Customer customer) {
 		// Trace message