Package org.postgresql.jdbc
Class PgResultSet.CursorResultHandler
- java.lang.Object
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- org.postgresql.core.ResultHandlerBase
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- org.postgresql.jdbc.PgResultSet.CursorResultHandler
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- All Implemented Interfaces:
ResultHandler
- Enclosing class:
- PgResultSet
public class PgResultSet.CursorResultHandler extends ResultHandlerBase
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Constructor Summary
Constructors Constructor Description CursorResultHandler()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
handleCommandStatus(java.lang.String status, long updateCount, long insertOID)
Called when a query that did not return a resultset completes.void
handleCompletion()
Called before a QueryExecutor method returns.void
handleResultRows(Query fromQuery, Field[] fields, java.util.List<Tuple> tuples, ResultCursor cursor)
Called when result rows are received from a query.-
Methods inherited from class org.postgresql.core.ResultHandlerBase
getException, getWarning, handleError, handleWarning, secureProgress
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Method Detail
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handleResultRows
public void handleResultRows(Query fromQuery, Field[] fields, java.util.List<Tuple> tuples, ResultCursor cursor)
Description copied from interface:ResultHandler
Called when result rows are received from a query.- Specified by:
handleResultRows
in interfaceResultHandler
- Overrides:
handleResultRows
in classResultHandlerBase
- Parameters:
fromQuery
- the underlying query that generated these results; this may not be very specific (e.g. it may be a query that includes multiple statements).fields
- column metadata for the resultset; might benull
if Query.QUERY_NO_METADATA was specified.tuples
- the actual datacursor
- a cursor to use to fetch additional data;null
if no further results are present.
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handleCommandStatus
public void handleCommandStatus(java.lang.String status, long updateCount, long insertOID)
Description copied from interface:ResultHandler
Called when a query that did not return a resultset completes.- Specified by:
handleCommandStatus
in interfaceResultHandler
- Overrides:
handleCommandStatus
in classResultHandlerBase
- Parameters:
status
- the command status string (e.g. "SELECT") returned by the backendupdateCount
- the number of rows affected by an INSERT, UPDATE, DELETE, FETCH, or MOVE command; -1 if not available.insertOID
- for a single-row INSERT query, the OID of the newly inserted row; 0 if not available.
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handleCompletion
public void handleCompletion() throws java.sql.SQLException
Description copied from interface:ResultHandler
Called before a QueryExecutor method returns. This method may throw a SQLException if desired; if it does, the QueryExecutor method will propagate that exception to the original caller.- Specified by:
handleCompletion
in interfaceResultHandler
- Overrides:
handleCompletion
in classResultHandlerBase
- Throws:
java.sql.SQLException
- if the handler wishes the original method to throw an exception.
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