io.grpc.ForwardingServerCallListener Maven / Gradle / Ivy
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*
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*
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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package io.grpc;
/**
* A {@link ServerCall.Listener} which forwards all of its methods to another {@link
* ServerCall.Listener}.
*/
public abstract class ForwardingServerCallListener extends ServerCall.Listener {
/**
* Returns the delegated {@code ServerCall.Listener}.
*/
protected abstract ServerCall.Listener delegate();
@Override
public void onMessage(ReqT message) {
delegate().onMessage(message);
}
@Override
public void onHalfClose() {
delegate().onHalfClose();
}
@Override
public void onCancel() {
delegate().onCancel();
}
@Override
public void onComplete() {
delegate().onComplete();
}
@Override
public void onReady() {
delegate().onReady();
}
/**
* A simplified version of {@link ForwardingServerCallListener} where subclasses can pass in a
* {@link ServerCall.Listener} as the delegate.
*/
public abstract static class SimpleForwardingServerCallListener
extends ForwardingServerCallListener {
private final ServerCall.Listener delegate;
protected SimpleForwardingServerCallListener(ServerCall.Listener delegate) {
this.delegate = delegate;
}
@Override
protected ServerCall.Listener delegate() {
return delegate;
}
}
}