CacheStore access to binary value in store/storeAll

What is the best way to get the raw binary value of the entry(ies) in a store/storeAll CacheStore method?

Hi Jk,
Thanks. This is actually what i had been trying without any success (although i mistakenly said BinaryStoreCacheStore rather than BinaryEntryStore in the post above). When the BinaryEntryStore.store is called, i try and convert just the key back to object with:
Object o = ExternalizableHelper.fromBinary(paramBinaryEntry.getBinaryValue());
but like i mentioned above, this throws the following as it seems to think the binary is not pof.
java.io.StreamCorruptedException: invalid type: 171
     at com.tangosol.util.ExternalizableHelper.fromBinary(ExternalizableHelper.java:266)
     at com.tangosol.util.ExternalizableHelper.fromBinary(ExternalizableHelper.java:230)
     at com.b.p.coherence.cacheStore.DatabaseCacheStore.store(DatabaseCacheStore.java:139)
     at com.tangosol.net.cache.ReadWriteBackingMap$BinaryEntryStoreWrapper.storeInternal(ReadWriteBackingMap.java:6035)
     at com.tangosol.net.cache.ReadWriteBackingMap$StoreWrapper.store(ReadWriteBackingMap.java:4814)
     at com.tangosol.net.cache.ReadWriteBackingMap.putInternal(ReadWriteBackingMap.java:1236)
     at com.tangosol.net.cache.ReadWriteBackingMap.put(ReadWriteBackingMap.java:745)
thanks

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