@Override
	@ManagedAttribute
	public String get(String key) {
		return delegate.get(getDelegateKey(key));
	}
Wraps a delegate {@link MetadataStore} and adds a prefix to all the handled keys.

Useful for sharing the same {@link MetadataStore} or underlying location without interference
between clients.

@author Marius Bogoevici
extensions/spring-xd-extension-kafka/src/main/java/org/springframework/integration/x/kafka/NamespaceDelegatingMetadataStore.java