--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.chromium.sdk/src/org/chromium/sdk/internal/protocolparser/JsonSubtypeConditionCustom.java	Wed Dec 23 17:13:18 2009 -0800
@@ -0,0 +1,27 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.sdk.internal.protocolparser;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Specifies a condition for a field-reading method. It is one from group of annotations that
+ * mark key fields for choosing particular subtype. They set conditions on JSON fields in a subtype
+ * interface that drive subtype auto-selection at parsing time.
+ * <p>
+ * Specifies a user-provided condition; works for fields of any type.
+ */
+@Target({ElementType.METHOD})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface JsonSubtypeConditionCustom {
+  /**
+   * Specifies user-provided condition in form of class with default constructor, that
+   * implements {@link JsonValueCondition} interface.
+   */
+  Class<? extends JsonValueCondition<?>> condition();
+}