org.postgresql

Interface PGStatement

All Known Subinterfaces:

BaseStatement

All Known Implementing Classes:

PgStatement

public interface PGStatement

This interface defines the public PostgreSQL extensions to java.sql.Statement. All Statements constructed by the PostgreSQL driver implement PGStatement.

Field Summary

Fields

Modifier and Type	Field and Description
static long	DATE_NEGATIVE_INFINITY
static long	DATE_NEGATIVE_SMALLER_INFINITY
static long	DATE_POSITIVE_INFINITY
static long	DATE_POSITIVE_SMALLER_INFINITY

Method Summary

Modifier and Type	Method and Description
boolean	getAdaptiveFetch() Get state of adaptive fetch for statement.
long	getLastOID() Returns the Last inserted/updated oid.
int	getPrepareThreshold() Gets the server-side prepare reuse threshold in use for this statement.
boolean	isUseServerPrepare() Checks if this statement will be executed as a server-prepared statement.
void	setAdaptiveFetch(boolean adaptiveFetch) Turn on/off adaptive fetch for statement.
void	setPrepareThreshold(int threshold) Sets the reuse threshold for using server-prepared statements.
void	setUseServerPrepare(boolean flag) Deprecated. As of build 302, replaced by setPrepareThreshold(int)

Field Detail

DATE_POSITIVE_INFINITY

static final long DATE_POSITIVE_INFINITY

See Also:

Constant Field Values

DATE_NEGATIVE_INFINITY

static final long DATE_NEGATIVE_INFINITY

See Also:

Constant Field Values

DATE_POSITIVE_SMALLER_INFINITY

static final long DATE_POSITIVE_SMALLER_INFINITY

See Also:

Constant Field Values

DATE_NEGATIVE_SMALLER_INFINITY

static final long DATE_NEGATIVE_SMALLER_INFINITY

See Also:

Constant Field Values

Method Detail

getLastOID

long getLastOID()
         throws SQLException

Returns the Last inserted/updated oid.

Returns:

OID of last insert

Throws:

SQLException - if something goes wrong

Since:

7.3

setUseServerPrepare

@Deprecated
void setUseServerPrepare(boolean flag)
                              throws SQLException

Deprecated. As of build 302, replaced by setPrepareThreshold(int)

Turn on the use of prepared statements in the server (server side prepared statements are unrelated to jdbc PreparedStatements) As of build 302, this method is equivalent to setPrepareThreshold(1).

Parameters:

flag - use server prepare

Throws:

SQLException - if something goes wrong

Since:

7.3

isUseServerPrepare

boolean isUseServerPrepare()

Checks if this statement will be executed as a server-prepared statement. A return value of true indicates that the next execution of the statement will be done as a server-prepared statement, assuming the underlying protocol supports it.

Returns:

true if the next reuse of this statement will use a server-prepared statement

setPrepareThreshold

void setPrepareThreshold(int threshold)
                  throws SQLException

Sets the reuse threshold for using server-prepared statements.

If threshold is a non-zero value N, the Nth and subsequent reuses of a PreparedStatement will use server-side prepare.

If threshold is zero, server-side prepare will not be used.

The reuse threshold is only used by PreparedStatement and CallableStatement objects; it is ignored for plain Statements.

Parameters:

threshold - the new threshold for this statement

Throws:

SQLException - if an exception occurs while changing the threshold

Since:

build 302

getPrepareThreshold

int getPrepareThreshold()

Gets the server-side prepare reuse threshold in use for this statement.

Returns:

the current threshold

Since:

build 302

See Also:

setPrepareThreshold(int)

setAdaptiveFetch

void setAdaptiveFetch(boolean adaptiveFetch)

Turn on/off adaptive fetch for statement. Existing resultSets won't be affected by change here.

Parameters:

adaptiveFetch - desired state of adaptive fetch.

getAdaptiveFetch

boolean getAdaptiveFetch()

Get state of adaptive fetch for statement.

Returns:

state of adaptive fetch (turned on or off)