From 0ad112c8f781211212cb6427d35eaeb758d903cb Mon Sep 17 00:00:00 2001
From: Steve Loughran <stevel@apache.org>
Date: Fri, 13 Jun 2003 05:15:11 +0000
Subject: [PATCH] refactoring out something that I see in too, too many places
 in datatypes

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@274666 13f79535-47bb-0310-9956-ffa450edef68
---
 .../org/apache/tools/ant/types/DataType.java  | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/src/main/org/apache/tools/ant/types/DataType.java b/src/main/org/apache/tools/ant/types/DataType.java
index a646b0311..868d2305e 100644
--- a/src/main/org/apache/tools/ant/types/DataType.java
+++ b/src/main/org/apache/tools/ant/types/DataType.java
@@ -232,8 +232,34 @@ public abstract class DataType extends ProjectComponent {
         this.checked = checked;
     }
 
+    /**
+     * get the reference set on this object
+     * @return the reference or null
+     */
     protected Reference getRefid()
     {
         return ref;
     }
+
+    /**
+     * check that it is ok to set attributes, i.e that no reference is defined
+     * @since Ant 1.6
+     * @throw BuildException if not allowed
+     */
+    protected void checkAttributesAllowed() {
+        if (isReference()) {
+            throw tooManyAttributes();
+        }
+    }
+
+    /**
+     * check that it is ok to add children, i.e that no reference is defined
+     * @since Ant 1.6
+     * @throw BuildException if not allowed
+     */
+    protected void checkChildrenAllowed() {
+        if (isReference()) {
+            throw noChildrenAllowed();
+        }
+    }
 }