Tao Jie created MNEMONIC-464:
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Summary: Support normal java object field in durable type
Key: MNEMONIC-464
URL: https://issues.apache.org/jira/browse/MNEMONIC-464
Project: Mnemonic
Issue Type: New Feature
Affects Versions: 0.11.0
Reporter: Tao Jie
Assignee: Tao Jie
Today, we define a durable type(eg: DurableA), we may define a normal object
field(B b). When we restore a DurableA object a(eg: we put a into a
DurableHashMap and get it from the map later), its reference of b would lost.
As discussed with [~qichfan] offline, one solution is that we maintain a
Map<B_ID, B> to keep the reference of B and have a B_ID(long type) field in
DurableA. Then we can find the object b from restored object A.
We can do this in the Mnemonic framework, and add a new type (maybe
DurableReference?) to support this situation. like:
{code}
class DurableA {
@DurableGetter
public abstract DurableReference<B> getFieldB();
@DurableSetter
public abstract void setFieldB(DurableReference<B> b, boolean destroy)
}
{code}
Then we can get object b by
{code}
a.getFieldB().get()
{code}
Any thought?
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