Files
2026-07-13 12:42:18 +08:00

73 lines
2.2 KiB
Java

package com.example.temporal;
import io.temporal.workflow.WorkflowInterface;
import io.temporal.workflow.WorkflowMethod;
import io.temporal.workflow.SignalMethod;
import io.temporal.workflow.QueryMethod;
import io.temporal.activity.ActivityInterface;
import io.temporal.activity.ActivityMethod;
// ── Interfaces ───────────────────────────────────────────────────────────────
@WorkflowInterface
public interface OrderWorkflow {
@WorkflowMethod
String processOrder(String orderId);
@SignalMethod
void cancelOrder(String reason);
@QueryMethod
String getStatus();
}
@ActivityInterface
public interface PaymentActivity {
@ActivityMethod
boolean chargeCard(String orderId, double amount);
}
@ActivityInterface
public interface ShippingActivity {
@ActivityMethod
String shipOrder(String orderId);
}
// ── Implementations ──────────────────────────────────────────────────────────
// Workflow impl holds activity stubs as fields
class OrderWorkflowImpl implements OrderWorkflow {
// These fields are assigned via Workflow.newActivityStub() at runtime
private PaymentActivity paymentActivity;
private ShippingActivity shippingActivity;
// Static fields should NOT produce TEMPORAL_STUB edges
private static final String TAG = "OrderWorkflowImpl";
@Override
public String processOrder(String orderId) {
boolean paid = paymentActivity.chargeCard(orderId, 100.0);
if (!paid) return "FAILED";
String trackingId = shippingActivity.shipOrder(orderId);
return trackingId;
}
@Override
public void cancelOrder(String reason) {}
@Override
public String getStatus() { return "OK"; }
}
// Activity impls
class PaymentActivityImpl implements PaymentActivity {
@Override
public boolean chargeCard(String orderId, double amount) { return true; }
}
class ShippingActivityImpl implements ShippingActivity {
@Override
public String shipOrder(String orderId) { return "TRACK-001"; }
}