convenience additions

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@290806 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/types/resources/selectors/Type.java

@@ -26,11 +26,34 @@ import org.apache.tools.ant.types.EnumeratedAttribute;
  */
 public class Type implements ResourceSelector {
 
+    private static final String FILE_ATTR = "file";
+    private static final String DIR_ATTR = "dir";
+
+    /** Static file type selector. */
+    public static final Type FILE = new Type(new FileDir(FILE_ATTR));
+
+    /** Static dir type selector. */
+    public static final Type DIR = new Type(new FileDir(DIR_ATTR));
+
     /**
      * Implements the type attribute.
      */
     public static class FileDir extends EnumeratedAttribute {
-        private static final String[] VALUES = new String[] {"file", "dir"};
+        private static final String[] VALUES = new String[] {FILE_ATTR, DIR_ATTR};
+
+        /**
+         * Default constructor.
+         */
+        public FileDir() {
+        }
+
+        /**
+         * Convenience constructor.
+         * @param value the String EnumeratedAttribute value.
+         */
+        public FileDir(String value) {
+            setValue(value);
+        }
 
         /**
          * Return the possible values.
@@ -43,6 +66,20 @@ public class Type implements ResourceSelector {
 
     private FileDir type = null;
 
+    /**
+     * Default constructor.
+     */
+    public Type() {
+    }
+
+    /**
+     * Convenience constructor.
+     * @param fd the FileDir type.
+     */
+    public Type(FileDir fd) {
+        setType(fd);
+    }
+
     /**
      * Set type; file|dir.
      * @param fd a FileDir object.