Package org.postgresql.core.v3

Class BatchedQuery

java.lang.Object

org.postgresql.core.v3.SimpleQuery

org.postgresql.core.v3.BatchedQuery

All Implemented Interfaces:

Query

public class BatchedQuery
extends SimpleQuery

Purpose of this object is to support batched query re write behaviour. Responsibility for tracking the batch size and implement the clean up of the query fragments after the batch execute is complete. Intended to be used to wrap a Query that is present in the batchStatements collection.

Field Summary

Fields

Modifier and Type	Field	Description
private final int	batchSize
private BatchedQuery[]	blocks
private String	sql
private final int	valuesBraceClosePosition
private final int	valuesBraceOpenPosition

Fields inherited from class org.postgresql.core.v3.SimpleQuery

NO_PARAMETERS

Constructor Summary

Constructors

Modifier	Constructor	Description
	BatchedQuery(NativeQuery query, TypeTransferModeRegistry transferModeRegistry, int valuesBraceOpenPosition, int valuesBraceClosePosition, boolean sanitiserDisabled)
private	BatchedQuery(BatchedQuery src, int batchSize)

Method Summary

Modifier and Type	Method	Description
private String	buildNativeSql(ParameterList params)
BatchedQuery	deriveForMultiBatch(int valueBlock)
int	getBatchSize()	Get the number of times this Query has been batched.
String	getNativeSql()	Method to return the sql based on number of batches.
String	toString(ParameterList params)	Stringize this query to a human-readable form, substituting particular parameter values for parameter placeholders.

Methods inherited from class org.postgresql.core.v3.SimpleQuery

close, createParameterList, getBindCount, getEncodedStatementName, getFields, getMaxResultRowSize, getNativeQuery, getPrepareTypes, getResultSetColumnNameIndexMap, getSqlCommand, getStatementName, getSubqueries, hasBinaryFields, hasUnresolvedTypes, isEmpty, isPortalDescribed, isPreparedFor, isStatementDescribed, needUpdateFieldFormats, resetNeedUpdateFieldFormats, setCleanupRef, setFields, setHasBinaryFields, setPortalDescribed, setPrepareTypes, setStatementDescribed, setStatementName, toString, unprepare

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

sql

private String sql

valuesBraceOpenPosition

private final int valuesBraceOpenPosition

valuesBraceClosePosition

private final int valuesBraceClosePosition

batchSize

private final int batchSize

blocks

private BatchedQuery[] blocks

Constructor Details

BatchedQuery

public BatchedQuery(NativeQuery query,
 TypeTransferModeRegistry transferModeRegistry,
 int valuesBraceOpenPosition,
 int valuesBraceClosePosition,
 boolean sanitiserDisabled)

BatchedQuery

private BatchedQuery(BatchedQuery src,
 int batchSize)

Method Details

deriveForMultiBatch

public BatchedQuery deriveForMultiBatch(int valueBlock)

getBatchSize

public int getBatchSize()

Description copied from interface: Query

Get the number of times this Query has been batched.

Specified by:

getBatchSize in interface Query

Overrides:

getBatchSize in class SimpleQuery

Returns:

number of times addBatch() has been called.

getNativeSql

public String getNativeSql()

Method to return the sql based on number of batches. Skipping the initial batch.

Specified by:

getNativeSql in interface Query

Overrides:

getNativeSql in class SimpleQuery

Returns:

SQL in native for database format

buildNativeSql

private String buildNativeSql(ParameterList params)

toString

public String toString(ParameterList params)

Description copied from interface: Query

Stringize this query to a human-readable form, substituting particular parameter values for parameter placeholders.

Specified by:

toString in interface Query

Overrides:

toString in class SimpleQuery

Parameters:

params - a ParameterList returned by this Query's Query.createParameterList() method, or null to leave the parameter placeholders unsubstituted.

Returns:

a human-readable representation of this query