InvalidationTracker.java 文件源码

/**
 * Used by the generated code.
 *
 * @hide
 */
@SuppressWarnings("WeakerAccess")
@RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
public InvalidationTracker(RoomDatabase database, String... tableNames) {
    mDatabase = database;
    mObservedTableTracker = new ObservedTableTracker(tableNames.length);
    mTableIdLookup = new ArrayMap<>();
    final int size = tableNames.length;
    mTableNames = new String[size];
    for (int id = 0; id < size; id++) {
        final String tableName = tableNames[id].toLowerCase(Locale.US);
        mTableIdLookup.put(tableName, id);
        mTableNames[id] = tableName;
    }
    mTableVersions = new long[tableNames.length];
    Arrays.fill(mTableVersions, 0);
}