#919 - io.ebean package initial

src/main/java/io/ebeaninternal/server/el/ElPropertyDeploy.java

@@ -0,0 +1,77 @@
+package io.ebeaninternal.server.el;
+
+import io.ebeaninternal.server.deploy.BeanProperty;
+
+/**
+ * Used to parse expressions in queries (where, orderBy etc).
+ * <p>
+ * Maps an expression to deployment information such as
+ * the DB column and elPrefix/elPlaceHolder is used determine
+ * joins and set place holders for table alias'.
+ * </p>
+ */
+public interface ElPropertyDeploy {
+
+  /**
+   * This is the elPrefix for all root level properties.
+   */
+  String ROOT_ELPREFIX = "${}";
+
+  /**
+   * Return true if the property is a formula with a join clause.
+   */
+  boolean containsFormulaWithJoin();
+
+  /**
+   * Return true if there is a property on the path that is a many property.
+   */
+  boolean containsMany();
+
+  /**
+   * Return true if there is a property is on the path after sinceProperty
+   * that is a 'many' property.
+   */
+  boolean containsManySince(String sinceProperty);
+
+  /**
+   * Return the prefix path of the property.
+   * <p>
+   * This is use to determine joins required to support
+   * this property.
+   * </p>
+   */
+  String getElPrefix();
+
+  /**
+   * Return the place holder in the form of ${elPrefix}dbColumn.
+   * <p>
+   * The ${elPrefix} is replaced by the appropriate table alias.
+   * </p>
+   */
+  String getElPlaceholder(boolean encrypted);
+
+  /**
+   * Return the name of the property.
+   */
+  String getName();
+
+  /**
+   * The ElPrefix plus name.
+   */
+  String getElName();
+
+  /**
+   * Return the deployment db column for this property.
+   */
+  String getDbColumn();
+
+  /**
+   * Return the underlying bean property.
+   */
+  BeanProperty getBeanProperty();
+
+  /**
+   * Return true if this is an aggregation property.
+   */
+  boolean isAggregation();
+}