Add 1.7 methods to TimeZone / SimpleTimeZone

The RI documents the required implementation.

Unlike the RI, SimpleTimeZone in Android does not override
the TimeZone implementation: it seems pointless to do so
given it appears to rely on the implementation details of
another method (inDaylightTime()) which can, itself, be
overridden.

Change-Id: I45d89cf0f30b49bb77c6dcfdae1a81edea40a2d4

1 files changed, 16 insertions, 0 deletions

diff --git a/luni/src/main/java/java/util/TimeZone.java b/luni/src/main/java/java/util/TimeZone.java
index c024e8d..48f11f9 100644
--- a/luni/src/main/java/java/util/TimeZone.java
+++ b/luni/src/main/java/java/util/TimeZone.java
@@ -403,6 +403,22 @@ public abstract class TimeZone implements Serializable, Cloneable {
     }
 
     /**
+     * Returns true if this timezone is in a daylight savings time period for or if it will be in at
+     * any time in the future.
+     *
+     * <p>The default implementation is equivalent to:
+     * <br />{@code return useDaylightTime() || inDaylightTime(new Date());}
+     *
+     * <p>See {@link #useDaylightTime()} and {@link #inDaylightTime(Date)} for more information.
+     *
+     * @since 1.7
+     * @hide Until ready for an API update
+     */
+    public boolean observesDaylightTime() {
+        return useDaylightTime() || inDaylightTime(new Date());
+    }
+
+    /**
      * Returns true if {@code time} is in a daylight savings time period for
      * this time zone.
      */