#919 - io.ebean package initial

src/main/java/io/ebeaninternal/server/deploy/generatedproperty/GeneratedCounter.java

@@ -0,0 +1,59 @@
+package io.ebeaninternal.server.deploy.generatedproperty;
+
+import io.ebean.bean.EntityBean;
+import io.ebeaninternal.server.core.BasicTypeConverter;
+import io.ebeaninternal.server.deploy.BeanProperty;
+
+/**
+ * A general number counter for various number types.
+ */
+public class GeneratedCounter implements GeneratedProperty {
+
+  final int numberType;
+
+  public GeneratedCounter(int numberType) {
+    this.numberType = numberType;
+  }
+
+  /**
+   * Always returns a 1.
+   */
+  @Override
+  public Object getInsertValue(BeanProperty prop, EntityBean bean, long now) {
+    return BasicTypeConverter.convert(1, numberType);
+  }
+
+  /**
+   * Increments the current value by one.
+   */
+  @Override
+  public Object getUpdateValue(BeanProperty prop, EntityBean bean, long now) {
+    Number currVal = (Number) prop.getValue(bean);
+    Integer nextVal = currVal.intValue() + 1;
+    return BasicTypeConverter.convert(nextVal, numberType);
+  }
+
+  /**
+   * Include this in every update.
+   */
+  public boolean includeInUpdate() {
+    return true;
+  }
+
+  @Override
+  public boolean includeInAllUpdates() {
+    return false;
+  }
+
+  /**
+   * Include this in every insert setting initial counter value to 1.
+   */
+  public boolean includeInInsert() {
+    return true;
+  }
+
+  public boolean isDDLNotNullable() {
+    return true;
+  }
+
+}