EQL - parsing fetch clause with lazy/query option

src/main/java/com/avaje/ebeaninternal/server/grammer/ParseFetchConfig.java

@@ -0,0 +1,49 @@
+package com.avaje.ebeaninternal.server.grammer;
+
+import com.avaje.ebean.FetchConfig;
+
+/**
+ * Parse the path that potentially is a FetchConfig definition.
+ */
+class ParseFetchConfig {
+
+  /**
+   * Parse the path that potentially is a FetchConfig definition.
+   * <p>
+   * Return the FetchConfig if it is and otherwise null.
+   * </p>
+   */
+  static FetchConfig parse(String path) {
+
+    if (path.startsWith("lazy")) {
+      if (path.length() == 4) {
+        return new FetchConfig().lazy();
+      } else if (path.charAt(4) == '(') {
+        path = path.substring(5);
+        int batchSize = parseBatchSize(path);
+        return new FetchConfig().lazy(batchSize);
+      } else {
+        return null;
+      }
+    }
+
+    if (path.startsWith("query")) {
+      if (path.length() == 5) {
+        return new FetchConfig().query();
+      } else if (path.charAt(5) == '(') {
+        path = path.substring(6);
+        int batchSize = parseBatchSize(path);
+        return new FetchConfig().query(batchSize);
+      } else {
+        return null;
+      }
+    }
+
+    return null;
+  }
+
+  private static int parseBatchSize(String path) {
+    path = path.substring(0, path.length()-1);
+    return Integer.parseInt(path);
+  }
+}