// Signature format: 4.0
package androidx.arch.core.executor {

  @RestrictTo(androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP_PREFIX) public class ArchTaskExecutor extends androidx.arch.core.executor.TaskExecutor {
    method public void executeOnDiskIO(Runnable);
    method public static java.util.concurrent.Executor getIOThreadExecutor();
    method public static androidx.arch.core.executor.ArchTaskExecutor getInstance();
    method public static java.util.concurrent.Executor getMainThreadExecutor();
    method public boolean isMainThread();
    method public void postToMainThread(Runnable);
    method public void setDelegate(androidx.arch.core.executor.TaskExecutor?);
  }

  @RestrictTo(androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP_PREFIX) public class DefaultTaskExecutor extends androidx.arch.core.executor.TaskExecutor {
    ctor public DefaultTaskExecutor();
    method public void executeOnDiskIO(Runnable);
    method public boolean isMainThread();
    method public void postToMainThread(Runnable);
  }

  @RestrictTo(androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP_PREFIX) public abstract class TaskExecutor {
    ctor public TaskExecutor();
    method public abstract void executeOnDiskIO(Runnable);
    method public void executeOnMainThread(Runnable);
    method public abstract boolean isMainThread();
    method public abstract void postToMainThread(Runnable);
  }

}