#5713 BeanContainer that does not require item id to be the bean

svn changeset:16216/svn branch:6.5

1 files changed, 95 insertions, 0 deletions

diff --git a/src/com/vaadin/data/util/BeanContainer.java b/src/com/vaadin/data/util/BeanContainer.java
new file mode 100644
index 0000000000..9c264b9dce
--- /dev/null
+++ b/src/com/vaadin/data/util/BeanContainer.java
@@ -0,0 +1,95 @@
+package com.vaadin.data.util;
+
+import com.vaadin.data.Item;
+
+/**
+ * An in-memory container for JavaBeans.
+ * 
+ * <p>
+ * The properties of the container are determined automatically by introspecting
+ * the used JavaBean class. Only beans of the same type can be added to the
+ * container.
+ * </p>
+ * 
+ * <p>
+ * In BeanContainer (unlike {@link BeanItemContainer}), the item IDs do not have
+ * to be the beans themselves.
+ * </p>
+ * 
+ * <p>
+ * It is not possible to add additional properties to the container and nested
+ * bean properties are not supported.
+ * </p>
+ * 
+ * @param <IDTYPE>
+ *            The type of the item identifier
+ * @param <BT>
+ *            The type of the Bean
+ * 
+ * @see AbstractBeanContainer
+ * @see BeanItemContainer
+ * 
+ * @since 6.5
+ */
+public class BeanContainer<IDTYPE, BT> extends
+        AbstractBeanContainer<IDTYPE, BT> {
+
+    public BeanContainer(Class<? extends BT> type) {
+        super(type);
+    }
+
+    public Item addItemAt(int index, Object newItemId)
+            throws UnsupportedOperationException {
+        throw new UnsupportedOperationException();
+    }
+
+    public Item addItemAfter(Object previousItemId, Object newItemId)
+            throws UnsupportedOperationException {
+        throw new UnsupportedOperationException();
+    }
+
+    public Item addItem(Object itemId) throws UnsupportedOperationException {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Adds the bean to the Container.
+     * 
+     * @see com.vaadin.data.Container#addItem(Object)
+     */
+    @Override
+    public BeanItem<BT> addItem(IDTYPE itemId, BT bean) {
+        return super.addItem(itemId, bean);
+    }
+
+    /**
+     * Adds the bean after the given bean.
+     * 
+     * @see com.vaadin.data.Container.Ordered#addItemAfter(Object, Object)
+     */
+    @Override
+    public BeanItem<BT> addItemAfter(IDTYPE previousItemId, IDTYPE newItemId,
+            BT bean) {
+        return super.addItemAfter(previousItemId, newItemId, bean);
+    }
+
+    /**
+     * Adds a new bean at the given index.
+     * 
+     * The bean is used both as the item contents and as the item identifier.
+     * 
+     * @param index
+     *            Index at which the bean should be added.
+     * @param newItemId
+     *            The item id for the bean to add to the container.
+     * @param bean
+     *            The bean to add to the container.
+     * 
+     * @return Returns the new BeanItem or null if the operation fails.
+     */
+    @Override
+    public BeanItem<BT> addItemAt(int index, IDTYPE newItemId, BT bean) {
+        return super.addItemAt(index, newItemId, bean);
+    }
+
+}