org.delia.db

Class DBInterfaceBase

java.lang.Object

org.delia.core.ServiceBase

org.delia.db.DBInterfaceBase

All Implemented Interfaces:

DBInterface

Direct Known Subclasses:

H2DBInterface, PostgresDBInterface

public abstract class DBInterfaceBase
extends ServiceBase
implements DBInterface

Represents db access to a single db (conn)

Author:

Ian Rae

Field Summary

Fields

Modifier and Type	Field and Description
protected DBCapabilties	capabilities
protected ConnectionFactory	connFactory
protected DBType	dbType
protected DBErrorConverter	errorConverter
protected Random	random
protected SqlHelperFactory	sqlHelperFactory
protected Log	sqlLog
protected TableCreator	tableCreator
protected ValueHelper	valueHelper

Fields inherited from class org.delia.core.ServiceBase

et, factorySvc, log

Constructor Summary

Constructors

Constructor and Description
DBInterfaceBase(DBType dbType, FactoryService factorySvc, ConnectionFactory connFactory, SqlHelperFactory sqlhelperFactory)

Method Summary

Modifier and Type	Method and Description
protected List<DValue>	buildDValueList(ResultSet rs, DStructType dtype, QueryDetails details, DBAccessContext dbctx)
protected List<DValue>	buildScalarResult(ResultSet rs, DType selectResultType, QueryDetails details, DBAccessContext dbctx)
abstract DBExecutor	createExector(DBAccessContext ctx)
protected FKSqlGenerator	createFKSqlGen(List<TableInfo> tblinfoL, DBAccessContext dbctx)
protected InsertStatementGenerator	createPrepInsertSqlGen(DBAccessContext dbctx)
protected PreparedStatementGenerator	createPrepSqlGen(DBAccessContext dbctx)
protected DValue	createRelation(DStructType structType, TypePair targetPair, ResultSet rs, DBAccessContext dbctx)
protected TableCreator	createTableCreator(DBAccessContext dbctx)
protected List<DValue>	doBuildDValueList(ResultSet rs, DStructType dtype, DBAccessContext dbctx)
void	enableSQLLogging(boolean b)
protected DValue	extractGeneratedKey(InsertContext ctx, SqlExecuteContext sqlctx)
protected String	generateUniqueConstraintName()
DBCapabilties	getCapabilities()
DBType	getDBType()
void	init(FactoryService factorySvc)
boolean	isSQLLoggingEnabled()
protected void	logSql(SqlStatement statement)
protected void	logSql(String sql)
protected List<DValue>	mergeRows(List<DValue> rawList, DStructType dtype, QueryDetails details) On a One-to-many relation our query returns multiple rows in order to get all the 'many' ids.
protected DValue	readField(TypePair pair, ResultSet rs, DBAccessContext dbctx)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.delia.db.DBInterface

alterField, alterFieldType, createField, createTable, deleteField, deleteTable, doesFieldExist, doesTableExist, executeDelete, executeInsert, executeQuery, executeUpdate, renameField, renameTable

Field Detail

capabilities

protected DBCapabilties capabilities

sqlLog

protected Log sqlLog

tableCreator

protected TableCreator tableCreator

valueHelper

protected ValueHelper valueHelper

sqlHelperFactory

protected SqlHelperFactory sqlHelperFactory

connFactory

protected ConnectionFactory connFactory

dbType

protected DBType dbType

errorConverter

protected DBErrorConverter errorConverter

random

protected Random random

Constructor Detail

DBInterfaceBase

public DBInterfaceBase(DBType dbType,
                       FactoryService factorySvc,
                       ConnectionFactory connFactory,
                       SqlHelperFactory sqlhelperFactory)

Method Detail

getCapabilities

public DBCapabilties getCapabilities()

Specified by:

getCapabilities in interface DBInterface

createExector

public abstract DBExecutor createExector(DBAccessContext ctx)

Specified by:

createExector in interface DBInterface

init

public void init(FactoryService factorySvc)

Specified by:

init in interface DBInterface

extractGeneratedKey

protected DValue extractGeneratedKey(InsertContext ctx,
                                     SqlExecuteContext sqlctx)
                              throws SQLException

Throws:

SQLException

logSql

protected void logSql(String sql)

buildDValueList

protected List<DValue> buildDValueList(ResultSet rs,
                                       DStructType dtype,
                                       QueryDetails details,
                                       DBAccessContext dbctx)

buildScalarResult

protected List<DValue> buildScalarResult(ResultSet rs,
                                         DType selectResultType,
                                         QueryDetails details,
                                         DBAccessContext dbctx)

mergeRows

protected List<DValue> mergeRows(List<DValue> rawList,
                                 DStructType dtype,
                                 QueryDetails details)

On a One-to-many relation our query returns multiple rows in order to get all the 'many' ids. Merge into a single row.

Parameters:

rawList - list of dvalues to merge

dtype - of values

details - query details

Returns:

merged rows

doBuildDValueList

protected List<DValue> doBuildDValueList(ResultSet rs,
                                         DStructType dtype,
                                         DBAccessContext dbctx)
                                  throws Exception

Throws:

Exception

createRelation

protected DValue createRelation(DStructType structType,
                                TypePair targetPair,
                                ResultSet rs,
                                DBAccessContext dbctx)
                         throws SQLException

Throws:

SQLException

readField

protected DValue readField(TypePair pair,
                           ResultSet rs,
                           DBAccessContext dbctx)
                    throws SQLException

Throws:

SQLException

createPrepSqlGen

protected PreparedStatementGenerator createPrepSqlGen(DBAccessContext dbctx)

createPrepInsertSqlGen

protected InsertStatementGenerator createPrepInsertSqlGen(DBAccessContext dbctx)

createTableCreator

protected TableCreator createTableCreator(DBAccessContext dbctx)

createFKSqlGen

protected FKSqlGenerator createFKSqlGen(List<TableInfo> tblinfoL,
                                        DBAccessContext dbctx)

isSQLLoggingEnabled

public boolean isSQLLoggingEnabled()

Specified by:

isSQLLoggingEnabled in interface DBInterface

enableSQLLogging

public void enableSQLLogging(boolean b)

Specified by:

enableSQLLogging in interface DBInterface

logSql

protected void logSql(SqlStatement statement)

getDBType

public DBType getDBType()

Specified by:

getDBType in interface DBInterface

generateUniqueConstraintName

protected String generateUniqueConstraintName()