ContentProvider getType() Method

ujjwalmaity · Jan 22, 2020 · 6e9dae1 · 6e9dae1
1 parent 6d07459
commit 6e9dae1
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diff --git a/app/src/main/java/dev/ujjwal/sqlitedatastorage/data/StudentContract.java b/app/src/main/java/dev/ujjwal/sqlitedatastorage/data/StudentContract.java
@@ -2,6 +2,7 @@
 
 import android.net.Uri;
 import android.provider.BaseColumns;
+import android.content.ContentResolver;
 
 public final class StudentContract {
 
@@ -23,5 +24,14 @@ public static final class StudentEntry implements BaseColumns {
         public final static String COLUMN_BATCH = "batch";
 
         public static final Uri CONTENT_URI = Uri.withAppendedPath(BASE_CONTENT_URI, PATH_STUDENTS);
+
+        /**
+         * The MIME type of the {@link #CONTENT_URI} for a list of pets.
+         */
+        public static final String CONTENT_LIST_TYPE = ContentResolver.CURSOR_DIR_BASE_TYPE + "/" + CONTENT_AUTHORITY + "/" + PATH_STUDENTS;
+        /**
+         * The MIME type of the {@link #CONTENT_URI} for a single pet.
+         */
+        public static final String CONTENT_ITEM_TYPE = ContentResolver.CURSOR_ITEM_BASE_TYPE + "/" + CONTENT_AUTHORITY + "/" + PATH_STUDENTS;
     }
 }
diff --git a/app/src/main/java/dev/ujjwal/sqlitedatastorage/data/StudentProvider.java b/app/src/main/java/dev/ujjwal/sqlitedatastorage/data/StudentProvider.java
@@ -172,6 +172,15 @@ public int delete(@NonNull Uri uri, @Nullable String selection, @Nullable String
     @Nullable
     @Override
     public String getType(@NonNull Uri uri) {
-        return null;
+        final int match = URI_MATCHER.match(uri);
+
+        switch (match) {
+            case STUDENTS:
+                return StudentEntry.CONTENT_LIST_TYPE;
+            case STUDENTS_ID:
+                return StudentEntry.CONTENT_ITEM_TYPE;
+            default:
+                throw new IllegalStateException("Unknown URI " + uri + " with match " + match);
+        }
     }
 }