#919 - io.ebean package initial

src/main/java/io/ebean/meta/MetaInfoManager.java

@@ -0,0 +1,41 @@
+package io.ebean.meta;
+
+import java.util.List;
+
+/**
+ * Provides access to the meta data in EbeanServer such as query execution statistics.
+ */
+public interface MetaInfoManager {
+
+  /**
+   * Return the MetaBeanInfo for a bean type.
+   */
+  MetaBeanInfo getMetaBeanInfo(Class<?> beanClass);
+
+  /**
+   * Return all the MetaBeanInfo.
+   */
+  List<MetaBeanInfo> getMetaBeanInfoList();
+
+  /**
+   * Collect and return the query plan statistics for all the beans.
+   * <p>
+   * Note that this excludes the query plan statistics where there has been no
+   * executions (since the last collection with reset).
+   * </p>
+   */
+  List<MetaQueryPlanStatistic> collectQueryPlanStatistics(boolean reset);
+
+  /**
+   * Collect and return the ObjectGraphNode statistics.
+   * <p>
+   * These show query executions based on an origin point and relative path.
+   * This is used to look at the amount of lazy loading occurring for a given
+   * query origin point and highlight potential for tuning a query.
+   * </p>
+   *
+   * @param reset Set to true to reset the underlying statistics after collection.
+   */
+  List<MetaObjectGraphNodeStats> collectNodeStatistics(boolean reset);
+
+}