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package com.sun.enterprise.admin.common.domains.registry;
import java.util.Iterator;
public interface DomainRegistryI
{
/**
Register the given domain information.
<p>
Precondition - the domain entry's name and location are unique
within the registry
<p>
Postcondition - the entry is registered under the domain
entry's name within the registry.
@param de the domain entry to be registered. The name and
location of this entry must be unique within the registry.
@throws NullPointerException if de is null
@throws DomainRegistryException if there's a problem with
registering the domain entry.
*/
void registerDomain(DomainEntry de) throws DomainRegistryException;
/**
Remove the registration of the domain with the given name.
<p>
Precondition - a domain is registered within the registry
with the given name
<p>
Postcondition - the registry contains no entry for the given
name
@param domain_name the name of the domain to be unregistered
@throws NullPointerException if the domain_name is null
@throws DomainRegistryException if the domain_name is unknown
with the registry, or if there's a problem in deleting the
registry entry
*/
void unregisterDomain(String domain_name) throws DomainRegistryException;
/**
Remove the registration of the given domain entry.
<p>
Precondition - a domain with the same name and location as
the given domain is registered in the registry
<p>
Postcondition - the registry contains no entry for the given
name
@param de the domain entry to be unregistered
@throws NullPointerException if de is null
@throws DomainRegistryException if de is not registered
within the registry, or if there's a problem in deleting the
registry entry
*/
void unregisterDomain(DomainEntry de) throws DomainRegistryException;
/**
Re-register the given domain entry with the registry.
<p>
Precondition - a domain with the same name and location as
the given domain entry is already registered in the
registry or no domain is registered which has either the
same name or the same location (or both).
<p>
Postcondition - the domain entry registered against the given
domain entry's name is the given domain entry.
@param de the domain entry to be re-registered
@throws DomainRegistryException if no domain with the given
domain entry's name is registered, or if there are other
problems with updating the registry
*/
void reregisterDomain(DomainEntry de) throws DomainRegistryException;
/**
Obtain an iterator over the entries in the
registry. The entries will appear in alphabetically sorted
order by name. This iterator will operate on a snapshot of the
registry obtained at the time this method is executed -
changes to the registry during the lifetime of the iterator returned from
this method will not affect the iterator.
@return an iterator (whose contents are all instances of
{@link DomainEntry}
@throws DomainRegistryException if there's a problem in
obtaining the iterator.
*/
Iterator iterator() throws DomainRegistryException;
/**
Indicate if the registry contains the given entry.
<p>
precondition - entry is not null
<p>
postcondition - registry has not been modified
@param de the entry whose presence in the registry is to be determined
@return true iff the entry is in the registry
@throws DomainRegistryException if there's a problem in accessing the registry
*/
boolean containsDomain(DomainEntry de) throws DomainRegistryException;
/**
Return the domain entry given a domain entry name.
<p>
precondition - the given name is not null
<p>
postcondition - the registry has not been modified
@param name - the name of the domain whose entry is to be obtained
@return DomainEntry from the registry whose name is that
given. Returns null if no match.
@throws DomainRegistryException if there's a problem accessing the
registry
*/
DomainEntry getDomain(String name) throws DomainRegistryException;
/**
Get the number of entries in the registry.
@return Return the number of items in the registry
@throws DomainRegistryException if there's a problem
accessing the registry
*/
int size() throws DomainRegistryException;
}
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