Don't cherry-pick:

- added EJBs for administrative and general purposes for receipt items
- implemented all business methods

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

diff --git a/src/java/org/mxchange/jfinancials/model/receipt_item/FinancialAdminReceiptItemSessionBean.java b/src/java/org/mxchange/jfinancials/model/receipt_item/FinancialAdminReceiptItemSessionBean.java
new file mode 100644 (file)
index 0000000..c01ea24
--- /dev/null
+++ b/src/java/org/mxchange/jfinancials/model/receipt_item/FinancialAdminReceiptItemSessionBean.java
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2017 Roland Häder
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.mxchange.jfinancials.model.receipt_item;
+
+import java.text.MessageFormat;
+import java.util.Date;
+import java.util.List;
+import javax.ejb.EJB;
+import javax.ejb.Stateless;
+import org.mxchange.jfinancials.database.BaseFinancialsDatabaseBean;
+import org.mxchange.jfinancials.exceptions.receipt_item.ReceiptItemAlreadyAddedException;
+import org.mxchange.jfinancials.model.receipt.item.BillableReceiptItem;
+import org.mxchange.jfinancials.model.receipt.item.ReceiptItems;
+
+/**
+ * A stateless bean for general purposes for receipt items
+ * <p>
+ * @author Roland Häder<roland@mxchange.org>
+ */
+@Stateless (name = "adminFinancialReceiptItem", description = "A stateless session bean for administrative purposes for receipt itemss.")
+public class FinancialAdminReceiptItemSessionBean extends BaseFinancialsDatabaseBean implements FinancialAdminReceiptItemSessionBeanRemote {
+
+       /**
+        * Serial number
+        */
+       private static final long serialVersionUID = 659_868_076_723_743L;
+
+       /**
+        * General EJB
+        */
+       @EJB (lookup = "java:global/jfinancials-ejb/financialReceiptItem!org.mxchange.jfinancials.model.receipt.item.FinancialReceiptItemSessionBeanRemote")
+       private FinancialReceiptItemSessionBeanRemote receiptItemBean;
+
+       @Override
+       public BillableReceiptItem addReceiptItem (final BillableReceiptItem receiptItem) throws ReceiptItemAlreadyAddedException {
+               // Trace message
+               this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.addReceiptItem(): receiptItem={1} - CALLED!", this.getClass().getSimpleName(), receiptItem)); //NOI18N
+
+               // Validate parameter
+               if (null == receiptItem) {
+                       // Throw NPE
+                       throw new NullPointerException("receiptItem is null"); //NOI18N
+               } else if (receiptItem.getItemProduct() == null) {
+                       // Throw it again
+                       throw new NullPointerException("receiptItem.itemProduct is null"); //NOI18N
+               } else if (receiptItem.getItemProduct().getProductId() == null) {
+                       // Throw it again
+                       throw new NullPointerException("receiptItem.itemProduct.productId is null"); //NOI18N
+               } else if (receiptItem.getItemProduct().getProductId() < 1) {
+                       // Throw IAE
+                       throw new IllegalArgumentException(MessageFormat.format("receiptItem.itemProduct.productId={0} is invalid.", receiptItem.getItemProduct().getProductId())); //NOI18N
+               } else if (receiptItem.getItemProductQuantity() < 1) {
+                       // Throw IAE again
+                       throw new IllegalArgumentException(MessageFormat.format("receiptItem.itemProductQuantity={0} is invalid.", receiptItem.getItemProductQuantity())); //NOI18N
+               } else if (receiptItem.getItemReceipt() == null) {
+                       // Throw NPE
+                       throw new NullPointerException("receiptItem.itemReceipt is null"); //NOI18N
+               } else if (receiptItem.getItemReceipt().getReceiptId() == null) {
+                       // Throw NPE
+                       throw new NullPointerException("receiptItem.itemReceipt.receiptId is null"); //NOI18N
+               } else if (receiptItem.getItemReceipt().getReceiptId() < 1) {
+                       // Throw NPE
+                       throw new NullPointerException(MessageFormat.format("receiptItem.itemReceipt.receiptId={0} is invalid.", receiptItem.getItemReceipt().getReceiptId())); //NOI18N
+               } else if (this.isReceiptItemRegistered(receiptItem)) {
+                       // Is already registered
+                       throw new ReceiptItemAlreadyAddedException(receiptItem);
+               }
+
+               // Add created timestamp
+               receiptItem.setItemCreated(new Date());
+
+               // Persist it
+               this.getEntityManager().persist(receiptItem);
+
+               // Trace message
+               this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.addReceiptItem(): receiptItem.itemId={1} - EXIT!", this.getClass().getSimpleName(), receiptItem.getItemId())); //NOI18N
+
+               // Return updated instance
+               return receiptItem;
+       }
+
+       /**
+        * Checks if given receipt item has already been added to receipt.
+        * <p>
+        * @param receiptItem Receipt item
+        * <p>
+        * @return Whether item has already been added to receipt item's receipt
+        */
+       private boolean isReceiptItemRegistered (final BillableReceiptItem receiptItem) {
+               // Default is not found
+               boolean isFound = false;
+
+               /*
+                * Get all receipt's receipt items. No need to look global as people may
+                * buy the same item again and again ... ;-)
+                */
+               final List<BillableReceiptItem> receiptItems = this.receiptItemBean.allReceiptItems(receiptItem.getItemReceipt());
+
+               // Loop through all entries
+               for (final BillableReceiptItem item : receiptItems) {
+                       // Is it the same item?
+                       if (ReceiptItems.isSameReceiptItem(item, receiptItem)) {
+                               // Found it
+                               isFound = true;
+                               break;
+                       }
+               }
+
+               // Return flag
+               return isFound;
+       }
+
+}

diff --git a/src/java/org/mxchange/jfinancials/model/receipt_item/FinancialReceiptItemSessionBean.java b/src/java/org/mxchange/jfinancials/model/receipt_item/FinancialReceiptItemSessionBean.java
new file mode 100644 (file)
index 0000000..4918c86
--- /dev/null
+++ b/src/java/org/mxchange/jfinancials/model/receipt_item/FinancialReceiptItemSessionBean.java
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2017 Roland Häder
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.mxchange.jfinancials.model.receipt_item;
+
+import java.text.MessageFormat;
+import java.util.Date;
+import java.util.List;
+import javax.ejb.Stateless;
+import javax.persistence.Query;
+import org.mxchange.jfinancials.database.BaseFinancialsDatabaseBean;
+import org.mxchange.jfinancials.exceptions.receipt_item.ReceiptItemAlreadyAddedException;
+import org.mxchange.jfinancials.model.receipt.BillableReceipt;
+import org.mxchange.jfinancials.model.receipt.item.BillableReceiptItem;
+import org.mxchange.jfinancials.model.receipt.item.ReceiptItems;
+import org.mxchange.jusercore.model.user.User;
+
+/**
+ * A stateless bean for general purposes for receipt items
+ * <p>
+ * @author Roland Häder<roland@mxchange.org>
+ */
+@Stateless (name = "financialReceiptItem", description = "A stateless session bean for handling receipt itemss.")
+public class FinancialReceiptItemSessionBean extends BaseFinancialsDatabaseBean implements FinancialReceiptItemSessionBeanRemote {
+
+       /**
+        * Serial number
+        */
+       private static final long serialVersionUID = 659_868_076_723_742L;
+
+       @Override
+       public BillableReceiptItem addReceiptItem (final BillableReceiptItem receiptItem) throws ReceiptItemAlreadyAddedException {
+               // Trace message
+               this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.addReceiptItem(): receiptItem={1} - CALLED!", this.getClass().getSimpleName(), receiptItem)); //NOI18N
+
+               // Validate parameter
+               if (null == receiptItem) {
+                       // Throw NPE
+                       throw new NullPointerException("receiptItem is null"); //NOI18N
+               } else if (receiptItem.getItemProduct() == null) {
+                       // Throw it again
+                       throw new NullPointerException("receiptItem.itemProduct is null"); //NOI18N
+               } else if (receiptItem.getItemProduct().getProductId() == null) {
+                       // Throw it again
+                       throw new NullPointerException("receiptItem.itemProduct.productId is null"); //NOI18N
+               } else if (receiptItem.getItemProduct().getProductId() < 1) {
+                       // Throw IAE
+                       throw new IllegalArgumentException(MessageFormat.format("receiptItem.itemProduct.productId={0} is invalid.", receiptItem.getItemProduct().getProductId())); //NOI18N
+               } else if (receiptItem.getItemProductQuantity() < 1) {
+                       // Throw IAE again
+                       throw new IllegalArgumentException(MessageFormat.format("receiptItem.itemProductQuantity={0} is invalid.", receiptItem.getItemProductQuantity())); //NOI18N
+               } else if (receiptItem.getItemReceipt() == null) {
+                       // Throw NPE
+                       throw new NullPointerException("receiptItem.itemReceipt is null"); //NOI18N
+               } else if (receiptItem.getItemReceipt().getReceiptId() == null) {
+                       // Throw NPE
+                       throw new NullPointerException("receiptItem.itemReceipt.receiptId is null"); //NOI18N
+               } else if (receiptItem.getItemReceipt().getReceiptId() < 1) {
+                       // Throw NPE
+                       throw new NullPointerException(MessageFormat.format("receiptItem.itemReceipt.receiptId={0} is invalid.", receiptItem.getItemReceipt().getReceiptId())); //NOI18N
+               } else if (this.isReceiptItemRegistered(receiptItem)) {
+                       // Is already registered
+                       throw new ReceiptItemAlreadyAddedException(receiptItem);
+               }
+
+               // Add created timestamp
+               receiptItem.setItemCreated(new Date());
+
+               // Persist it
+               this.getEntityManager().persist(receiptItem);
+
+               // Trace message
+               this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.addReceiptItem(): receiptItem.itemId={1} - EXIT!", this.getClass().getSimpleName(), receiptItem.getItemId())); //NOI18N
+
+               // Return updated instance
+               return receiptItem;
+       }
+
+       @Override
+       @SuppressWarnings ("unchecked")
+       public List<BillableReceiptItem> allReceiptItems () {
+               // Trace message
+               this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.allReceiptItems(): CALLED!", this.getClass().getSimpleName())); //NOI18N
+
+               // Get named query
+               final Query query = this.getEntityManager().createNamedQuery("AllReceiptItems"); //NOI18N
+
+               // Get list
+               final List<BillableReceiptItem> receiptItems = query.getResultList();
+
+               // Trace message
+               this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.allReceiptItems(): receiptItems()={1} EXIT!", this.getClass().getSimpleName(), receiptItems.size())); //NOI18N
+
+               // Return it
+               return receiptItems;
+       }
+
+       @Override
+       @SuppressWarnings ("unchecked")
+       public List<BillableReceiptItem> allReceiptItems (final BillableReceipt receipt) {
+               // Trace message
+               this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.allReceiptItems(): receipt={1} - CALLED!", this.getClass().getSimpleName(), receipt)); //NOI18N
+
+               // Get named query
+               final Query query = this.getEntityManager().createNamedQuery("SearchAssignedReceiptItems"); //NOI18N
+
+               // Set parameter
+               query.setParameter("itemReceipt", receipt); //NOI18N
+
+               // Get list
+               final List<BillableReceiptItem> receiptItems = query.getResultList();
+
+               // Trace message
+               this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.allReceiptItems(): receiptItems()={1} EXIT!", this.getClass().getSimpleName(), receiptItems.size())); //NOI18N
+
+               // Return it
+               return receiptItems;
+       }
+
+       @Override
+       @SuppressWarnings ("unchecked")
+       public List<BillableReceiptItem> allUsersReceiptItems (final User user) {
+               // Trace message
+               this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.allUsersReceiptItems(): user={1} - CALLED!", this.getClass().getSimpleName(), user)); //NOI18N
+
+               // Get named query
+               final Query query = this.getEntityManager().createNamedQuery("SearchAllUserReceiptItems"); //NOI18N
+
+               // Set parameter
+               query.setParameter("receiptUser", user); //NOI18N
+
+               // Get list
+               final List<BillableReceiptItem> receiptItems = query.getResultList();
+
+               // Trace message
+               this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.allReceiptItems(): receiptItems()={1} EXIT!", this.getClass().getSimpleName(), receiptItems.size())); //NOI18N
+
+               // Return it
+               return receiptItems;
+       }
+
+       /**
+        * Checks if given receipt item has already been added to receipt.
+        * <p>
+        * @param receiptItem Receipt item
+        * <p>
+        * @return Whether item has already been added to receipt item's receipt
+        */
+       private boolean isReceiptItemRegistered (final BillableReceiptItem receiptItem) {
+               // Default is not found
+               boolean isFound = false;
+
+               /*
+                * Get all receipt's receipt items. No need to look global as people may
+                * buy the same item again and again ... ;-)
+                */
+               final List<BillableReceiptItem> receiptItems = this.allReceiptItems(receiptItem.getItemReceipt());
+
+               // Loop through all entries
+               for (final BillableReceiptItem item : receiptItems) {
+                       // Is it the same item?
+                       if (ReceiptItems.isSameReceiptItem(item, receiptItem)) {
+                               // Found it
+                               isFound = true;
+                               break;
+                       }
+               }
+
+               // Return flag
+               return isFound;
+       }
+
+}