Files
briar/briar-api/src/org/briarproject/api/privategroup/PrivateGroupManager.java

88 lines
2.9 KiB
Java

package org.briarproject.api.privategroup;
import org.briarproject.api.clients.MessageTracker;
import org.briarproject.api.db.DbException;
import org.briarproject.api.db.Transaction;
import org.briarproject.api.identity.Author;
import org.briarproject.api.nullsafety.NotNullByDefault;
import org.briarproject.api.sync.ClientId;
import org.briarproject.api.sync.GroupId;
import org.briarproject.api.sync.MessageId;
import java.util.Collection;
@NotNullByDefault
public interface PrivateGroupManager extends MessageTracker {
/** Returns the unique ID of the private group client. */
ClientId getClientId();
/**
* Adds a new private group and joins it.
*
* @param group The private group to add
* @param joinMsg The creator's own join message
*/
void addPrivateGroup(PrivateGroup group, GroupMessage joinMsg)
throws DbException;
/** Removes a dissolved private group. */
void removePrivateGroup(GroupId g) throws DbException;
/** Gets the MessageId of your previous message sent to the group */
MessageId getPreviousMsgId(GroupId g) throws DbException;
/** Returns the timestamp of the message with the given ID */
// TODO change to getPreviousMessageHeader()
long getMessageTimestamp(MessageId id) throws DbException;
/** Marks the group with GroupId g as resolved */
void markGroupDissolved(Transaction txn, GroupId g) throws DbException;
/** Returns true if the private group has been dissolved. */
boolean isDissolved(GroupId g) throws DbException;
/** Stores (and sends) a local group message. */
GroupMessageHeader addLocalMessage(GroupMessage p) throws DbException;
/** Returns the private group with the given ID. */
PrivateGroup getPrivateGroup(GroupId g) throws DbException;
/**
* Returns the private group with the given ID within the given transaction.
*/
PrivateGroup getPrivateGroup(Transaction txn, GroupId g) throws DbException;
/** Returns all private groups the user is a member of. */
Collection<PrivateGroup> getPrivateGroups() throws DbException;
/** Returns the body of the group message with the given ID. */
String getMessageBody(MessageId m) throws DbException;
/** Returns the headers of all group messages in the given group. */
Collection<GroupMessageHeader> getHeaders(GroupId g) throws DbException;
/** Returns all members of the group with ID g */
Collection<GroupMember> getMembers(GroupId g) throws DbException;
/** Returns true if the given Author a is member of the group with ID g */
boolean isMember(Transaction txn, GroupId g, Author a) throws DbException;
/**
* Registers a hook to be called when members are added
* or groups are removed.
* */
void registerPrivateGroupHook(PrivateGroupHook hook);
@NotNullByDefault
interface PrivateGroupHook {
void addingMember(Transaction txn, GroupId g, Author a)
throws DbException;
void removingGroup(Transaction txn, GroupId g) throws DbException;
}
}