#919 - io.ebean package initial

src/main/java/io/ebean/Version.java

@@ -0,0 +1,101 @@
+package io.ebean;
+
+import java.sql.Timestamp;
+import java.util.Map;
+
+/**
+ * Wraps a version of a @History bean.
+ */
+public class Version<T> {
+
+  /**
+   * The version of the bean.
+   */
+  protected T bean;
+
+  /**
+   * The effective start date time of this version.
+   */
+  protected Timestamp start;
+
+  /**
+   * The effective end date time of this version.
+   */
+  protected Timestamp end;
+
+  /**
+   * The map of changed properties.
+   */
+  protected Map<String, ValuePair> diff;
+
+  /**
+   * Construct with bean and an effective date time range.
+   */
+  public Version(T bean, Timestamp start, Timestamp end) {
+    this.bean = bean;
+    this.start = start;
+    this.end = end;
+  }
+
+  /**
+   * Default constructor - useful for JSON tools such as Jackson.
+   */
+  public Version() {
+  }
+
+  /**
+   * Return the bean instance for this version.
+   */
+  public T getBean() {
+    return bean;
+  }
+
+  /**
+   * Set the bean instance for this version.
+   */
+  public void setBean(T bean) {
+    this.bean = bean;
+  }
+
+  /**
+   * Return the effective start date time of this version.
+   */
+  public Timestamp getStart() {
+    return start;
+  }
+
+  /**
+   * Set the effective start date time of this version.
+   */
+  public void setStart(Timestamp start) {
+    this.start = start;
+  }
+
+  /**
+   * Return the effective end date time of this version.
+   */
+  public Timestamp getEnd() {
+    return end;
+  }
+
+  /**
+   * Set the effective end date time of this version.
+   */
+  public void setEnd(Timestamp end) {
+    this.end = end;
+  }
+
+  /**
+   * Set the map of differences from this bean to the prior version.
+   */
+  public void setDiff(Map<String, ValuePair> diff) {
+    this.diff = diff;
+  }
+
+  /**
+   * Return the map of differences from this bean to the prior version.
+   */
+  public Map<String, ValuePair> getDiff() {
+    return diff;
+  }
+}