org.apache.seata.rm.datasource

Class SqlGenerateUtils

java.lang.Object

org.apache.seata.rm.datasource.SqlGenerateUtils

public class SqlGenerateUtils
extends Object

generate sql and set value to sql

Method Summary

Modifier and Type	Method and Description
static String	buildWhereConditionByPKs(List<String> pkNameList, int rowSize, String dbType)
static String	buildWhereConditionByPKs(List<String> pkNameList, int rowSize, String dbType, int maxInSize) each pk is a condition.the result will like :" (id,userCode) in ((?,?),(?,?)) or (id,userCode) in ((?,?),(?,?) ) or (id,userCode) in ((?,?))" Build where condition by pks string.
static String	buildWhereConditionByPKs(List<String> pkNameList, String dbType) each pk is a condition.the result will like :" id =? and userCode =?"
static void	setParamForPk(List<Map<String,Field>> pkRowsList, List<String> pkColumnNameList, PreparedStatement pst) set parameter for PreparedStatement, this is only used in pk sql.

Methods inherited from class java.lang.Object

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

Method Detail

buildWhereConditionByPKs

public static String buildWhereConditionByPKs(List<String> pkNameList,
                                              int rowSize,
                                              String dbType)
                                       throws SQLException

Throws:

SQLException

buildWhereConditionByPKs

public static String buildWhereConditionByPKs(List<String> pkNameList,
                                              int rowSize,
                                              String dbType,
                                              int maxInSize)
                                       throws SQLException

each pk is a condition.the result will like :" (id,userCode) in ((?,?),(?,?)) or (id,userCode) in ((?,?),(?,?) ) or (id,userCode) in ((?,?))" Build where condition by pks string.

Parameters:

pkNameList - pk column name list

rowSize - the row size of records

dbType - the type of database

maxInSize - the max in size

Returns:

return where condition sql string.the sql can search all related records not just one.

Throws:

SQLException - the sql exception

setParamForPk

public static void setParamForPk(List<Map<String,Field>> pkRowsList,
                                 List<String> pkColumnNameList,
                                 PreparedStatement pst)
                          throws SQLException

set parameter for PreparedStatement, this is only used in pk sql.

Parameters:

pkRowsList - pkRowsList

pkColumnNameList - pkColumnNameList

pst - preparedStatement

Throws:

SQLException - SQLException

buildWhereConditionByPKs

public static String buildWhereConditionByPKs(List<String> pkNameList,
                                              String dbType)

each pk is a condition.the result will like :" id =? and userCode =?"

Parameters:

pkNameList - pkNameList

dbType - dbType

Returns:

return where condition sql string.the sql can just search one related record.