Android & PostgreSQL (application/pdf - 311.5 KB) - PGCon

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LISTEN: Dummy query Need to issue a dummy query to contact the PostgreSQL database before any pending notifications are received: while ( true ) { try { Statement stmt = conn . c r e a t e S t a t e m e n t ( ) ; R e s u l t S e t r s = stmt . executeQuery ( ”SELECT 1 ; ” ) ; r s . c l o s e ( ) ; stmt . c l o s e ( ) ; . . . markwkm (PGCon2011) Android & PostgreSQL 20 May 2011 20 / 37
LISTEN: Handle notifications A key limitation of the JDBC driver is that it cannot receive asynchronous notifications and must poll the backend to check if any notifications were issued. . . . org . p o s t g r e s q l . P G N o t i f i c a t i o n n o t i f i c a t i o n s [ ] = pgconn . g e t N o t i f i c a t i o n s ( ) ; i f ( n o t i f i c a t i o n s != n u l l ) { f o r ( i n t i =0; i
Page 1 and 2: Android & PostgreSQL Mark Wong mark
Page 3 and 4: Overview Two topics, mostly the lat
Page 5 and 6: Development Environment A few detai
Page 7 and 8: Using the PostgreSQL JDBC Driver To
Page 9 and 10: PostgreSQL JDBC Code Examples • S
Page 11 and 12: Execute a Query Select the name of
Page 13 and 14: Execute a Query with a Bind Value B
Page 15 and 16: Create, Modify, or Drop Database Ob
Page 17 and 18: Example for Calling Stored Function
Page 19: Starting listening to a channel Reg
Page 23 and 24: Stop listening to a channel Stop li
Page 25 and 26: Server Prepared Statements JDBC all
Page 27 and 28: INSERT a circle PGpoint c e n t e r
Page 29 and 30: JDBC Escapes A special escape synta
Page 31 and 32: Connection pools Long examples for
Page 33 and 34: Android Example Programs For refere
Page 35 and 36: __ __ / \~~~/ \ . o O ( Thank you!
Page 37: License This work is licensed under

Android & PostgreSQL (application/pdf - 311.5 KB) - PGCon

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