97 lines
2.0 KiB
Plaintext
97 lines
2.0 KiB
Plaintext
#ifndef pgsql_idl
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#define pgsql_idl
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#ifndef CosQuery_idl
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#include "CosQuery.idl"
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#endif
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#ifndef CosQueryCollection_idl
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#include "CosQueryCollection.idl"
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#endif
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#pragma prefix ""
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module PostgreSQL {
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// Built-in types
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module Types {
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// Arrays in network order
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typedef short int2;
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typedef long int4;
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typedef long int8[2];
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};
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// NULL support
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typedef boolean Null;
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union Value switch (Null) {
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case FALSE: any value;
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};
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// Row definition
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typedef sequence<Value> Row;
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// <info>
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// More about the application of COSS:
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//
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// A Table will be a QueryableCollection of Rows
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// A Database will be a QueryableCollection of Tables
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// (Currently Tables are not exported... maybe later.)
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// Both will be queryable via the Query Service
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//
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// Other relations will be representable using the Relationship Service
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// This includes primary/foreign keys and anything else :)
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//
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// GRANT/REVOKE can be supplied via the Security Service
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//
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// See a pattern here? The whole of SQL can be implemented by these services!
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// The statements go through a parser. Queries and subqueries are passed to the
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// database for processing. Returned items are handled appropriately:
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//
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// SELECT: return the items to the caller
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// UPDATE: modify the items (direct)
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// DELETE: call delete() on each Row (direct)
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// GRANT/REVOKE: modify ACLs (via Security Service)
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// ALTER: modify the items (direct) and/or the relations (via Relationship Service)
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// etc.
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//
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// I'm not sure yet about LOCK and UNLOCK.
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// </info>
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// Expirable object
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interface Expirable {
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/* oneway? */ void keepalive();
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void remove();
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};
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// Upcall object
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interface Upcall {
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void notice(in string message);
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void abort();
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};
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// Connected database object
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interface Database : CosQuery::QueryableCollection, Expirable {
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void setupcall(in Upcall obj);
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};
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// Server object (stateless)
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interface Server {
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Database connect(in string db, in string user, in string password);
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};
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};
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#endif // pgsql_idl
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