Initial Contribution

1 files changed, 42 insertions, 0 deletions

diff --git a/core/java/android/widget/FilterQueryProvider.java b/core/java/android/widget/FilterQueryProvider.java
new file mode 100644
index 0000000..740d2f0
--- /dev/null
+++ b/core/java/android/widget/FilterQueryProvider.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.widget;
+
+import android.database.Cursor;
+
+/**
+ * This class can be used by external clients of CursorAdapter and
+ * CursorTreeAdapter to define how the content of the adapter should be
+ * filtered.
+ * 
+ * @see #runQuery(CharSequence)
+ */
+public interface FilterQueryProvider {
+    /**
+     * Runs a query with the specified constraint. This query is requested
+     * by the filter attached to this adapter.
+     *
+     * Contract: when constraint is null or empty, the original results,
+     * prior to any filtering, must be returned.
+     *
+     * @param constraint the constraint with which the query must
+     *        be filtered
+     *
+     * @return a Cursor representing the results of the new query
+     */
+    Cursor runQuery(CharSequence constraint);
+}