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package org.whispersystems.libaxolotl.state;
import org.whispersystems.libaxolotl.InvalidKeyIdException;
/**
* An interface describing the local storage of {@link PreKeyRecord}s.
*
* @author Moxie Marlinspike
*/
public interface PreKeyStore {
/**
* Load a local PreKeyRecord.
*
* @param preKeyId the ID of the local PreKeyRecord.
* @return the corresponding PreKeyRecord.
* @throws InvalidKeyIdException when there is no corresponding PreKeyRecord.
*/
public PreKeyRecord loadPreKey(int preKeyId) throws InvalidKeyIdException;
/**
* Store a local PreKeyRecord.
*
* @param preKeyId the ID of the PreKeyRecord to store.
* @param record the PreKeyRecord.
*/
public void storePreKey(int preKeyId, PreKeyRecord record);
/**
* @param preKeyId A PreKeyRecord ID.
* @return true if the store has a record for the preKeyId, otherwise false.
*/
public boolean containsPreKey(int preKeyId);
/**
* Delete a PreKeyRecord from local storage.
*
* @param preKeyId The ID of the PreKeyRecord to remove.
*/
public void removePreKey(int preKeyId);
}
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