ArcaQueryFragment.java

package io.pivotal.arca.fragments;

import android.annotation.TargetApi;
import android.app.Fragment;
import android.os.Build;
import android.os.Bundle;

import io.pivotal.arca.dispatcher.Delete;
import io.pivotal.arca.dispatcher.DeleteResult;
import io.pivotal.arca.dispatcher.Error;
import io.pivotal.arca.dispatcher.Insert;
import io.pivotal.arca.dispatcher.InsertResult;
import io.pivotal.arca.dispatcher.Query;
import io.pivotal.arca.dispatcher.QueryListener;
import io.pivotal.arca.dispatcher.Update;
import io.pivotal.arca.dispatcher.UpdateResult;
import io.pivotal.arca.monitor.ArcaDispatcher;
import io.pivotal.arca.monitor.RequestMonitor;

@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public abstract class ArcaQueryFragment extends Fragment implements QueryListener {

	private ArcaDispatcher mDispatcher;

	@Override
	public void onCreate(final Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		mDispatcher = onCreateDispatcher(savedInstanceState);
	}

	public ArcaDispatcher onCreateDispatcher(final Bundle savedInstanceState) {
		return ArcaDispatcherFactory.generateDispatcher(this);
	}

	protected ArcaDispatcher getRequestDispatcher() {
		return mDispatcher;
	}

	protected RequestMonitor getRequestMonitor() {
		final ArcaDispatcher dispatcher = getRequestDispatcher();
		if (dispatcher != null) {
			return dispatcher.getRequestMonitor();
		} else {
			return null;
		}
	}

	protected void setRequestMonitor(final RequestMonitor monitor) {
		final ArcaDispatcher dispatcher = getRequestDispatcher();
		if (dispatcher != null) {
			dispatcher.setRequestMonitor(monitor);
		}
	}

	protected void execute(final Query request) {
		final ArcaDispatcher dispatcher = getRequestDispatcher();
		if (dispatcher != null) {
			dispatcher.execute(request, this);
		}
	}

	protected InsertResult execute(final Insert request) {
		final ArcaDispatcher dispatcher = getRequestDispatcher();
		if (dispatcher != null) {
			return dispatcher.execute(request);
		} else {
			return new InsertResult(new Error(0, "No dispatcher found"));
		}
	}

	protected UpdateResult execute(final Update request) {
		final ArcaDispatcher dispatcher = getRequestDispatcher();
		if (dispatcher != null) {
			return dispatcher.execute(request);
		} else {
            return new UpdateResult(new Error(0, "No dispatcher found"));
		}
	}

	protected DeleteResult execute(final Delete request) {
		final ArcaDispatcher dispatcher = getRequestDispatcher();
		if (dispatcher != null) {
			return dispatcher.execute(request);
		} else {
            return new DeleteResult(new Error(0, "No dispatcher found"));
		}
	}
}