ptupitsyn commented on issue #11775:
URL: https://github.com/apache/ignite/issues/11775#issuecomment-2563437952
When you say `withExpiryPolicy`, no new cache is created. It is just a
reference to the same cache, but all write operations will set the specified
expiry for the entries.
```java
IgniteCache cache = ignite.cache("myCache");
cache.put(1, "a"); // No expiry
IgniteCache cacheWithExpiry = cache.withExpiryPolicy(new
CreatedExpiryPolicy(new Duration(TimeUnit.MINUTES, 5)));
System.out.println(cacheWithExpiry.get(1)); // Prints "a"
cacheWithExpiry.put(2, "b"); // Will expire in 5 min
System.out.println(cache.get(2)); // Prints "b"
cache.put(3, "c"); // Won't expire
cacheWithExpiry.put(4, "d"); // Will expire
```
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