com.sun.jdo.spi.persistence.support.sqlstore.sql.generator

Class UpdateQueryPlan

java.lang.Object

com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.QueryPlan

com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.UpdateQueryPlan

public class UpdateQueryPlan
extends QueryPlan

This class is used to generated update/insert/delete statements.

Field Summary

Fields inherited from class com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.QueryPlan

ACT_DELETE, ACT_INSERT, ACT_NOOP, ACT_SELECT, ACT_UPDATE, action, config, messages, ST_BUILT, statements, status, store, tables

Constructor Summary

Constructors

Constructor and Description
UpdateQueryPlan(ActionDesc desc, SQLStoreManager store)

Method Summary

Modifier and Type	Method and Description
void	build()
void	build(boolean batch) Builds a UpdateQueryPlan for an object based update type (i.e.
boolean	checkBatchThreshold(Transaction tran) Determines if the amount of batched operations exceeded a threshold.
protected Statement	newStatement()
protected void	processStatements() This method goes through the statement list and tries to set up relationship between statements based on secondary table keys.

Methods inherited from class com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.QueryPlan

addQueryTable, addQueryTable, addQueryTables, addStatement, createStatement, findQueryTable, findQueryTable, getAction, getConfig, getStatement, getStatements

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateQueryPlan

public UpdateQueryPlan(ActionDesc desc,
                       SQLStoreManager store)

Method Detail

build

public void build()

Specified by:

build in class QueryPlan

build

public void build(boolean batch)

Builds a UpdateQueryPlan for an object based update type (i.e. insert, update, delete) ActionDesc.

Parameters:

batch - Flag indicating whether we use batch update.

processStatements

protected void processStatements()

Description copied from class: QueryPlan

This method goes through the statement list and tries to set up relationship between statements based on secondary table keys.

Overrides:

processStatements in class QueryPlan

newStatement

protected Statement newStatement()

Specified by:

newStatement in class QueryPlan

checkBatchThreshold

public boolean checkBatchThreshold(Transaction tran)

Determines if the amount of batched operations exceeded a threshold.

Parameters:

tran - the transaction

Returns:

true if the amount of batched operations exceeded a threshold