org.batoo.jpa.jdbc.adapter

Class H2Adaptor

java.lang.Object

org.batoo.jpa.jdbc.adapter.AbstractJdbcAdaptor

org.batoo.jpa.jdbc.adapter.JdbcAdaptor

org.batoo.jpa.jdbc.adapter.H2Adaptor

public class H2Adaptor
extends JdbcAdaptor

JDBC Adapter for H2DB.

Since:

2.0.0

Author:

hceylan

Nested Class Summary

Nested classes/interfaces inherited from class org.batoo.jpa.jdbc.adapter.JdbcAdaptor

JdbcAdaptor.PaginationParamsOrder

Constructor Summary

Constructors

Constructor and Description
H2Adaptor()

Method Summary

Methods

Modifier and Type	Method and Description
String	applyConcat(List<String> arguments) Applies the concat operation to the arguments.
String	applyLikeEscape(String escapePattern) Appends the escape pattern.
String	applyLock(String sql, javax.persistence.LockModeType lockMode) Applies the lock to SQL string.
String	applyPagination(String sql, int startPosition, int maxResult) Applies the pagination to SQL string.
String	applyTrim(javax.persistence.criteria.CriteriaBuilder.Trimspec trimspec, String trimChar, String argument) Applies the trim to argument
String	createColumnDDL(AbstractColumn column) Creates(generates) the BasicColumn Definition DDL for the column.
void	createSequenceIfNecessary(DataSource datasource, SequenceGenerator sequence) Creates the sequence if not exists.
protected String	getCastClassName(Class<?> clazz) Returns the clazz to DB type data type.
protected String	getColumnType(AbstractColumn cd, int sqlType) Returns the data type of the column.
protected String	getDatabaseName() Returns the name of the database.
protected String	getDropForeignKeySql(String schema, String table, String foreignKey) Returns the SQL to drop the foreign key.
long	getNextSequence(DataSource datasource, String sequenceName) Returns next sequence number from the database.
JdbcAdaptor.PaginationParamsOrder	getPaginationParamsOrder() Returns the pagination params order for the adaptor.
protected String[]	getProductNames()
String	getSelectLastIdentitySql(BasicColumn identityColumn) Returns the SQL to select the last identity generated.
protected boolean	isForeignKeyHasDefaultIndex() Underlining DB creates an index for foreign Keys
boolean	paginationNeedsMaxResultsAlways() Returns if pagination always needs the max results paramater.
boolean	paginationNeedsStartAlways() Returns if pagination always needs the start paramater.
IdType	supports(javax.persistence.GenerationType type) Returns the id type supported.
boolean	supportsNamedParams() Returns if the database supports named params i.e.: select * from mytable field = :p1.

Methods inherited from class org.batoo.jpa.jdbc.adapter.JdbcAdaptor

createCreateTableStatement, createForeignKey, createIndex, createOrUpdateTable, createTableGeneratorIfNecessary, dropAllForeignKeys, dropAllSequences, dropAllTables, dropSequence, dropTable, escape, getColumns, getCurrentDate, getCurrentTime, getCurrentTimeStamp, getDateTimeFunctionTemplate, getInsertBatchSize, getNumericFunctionTemplate, getPkCreateSql, getPkDropSql, getRemoveBatchSize, importSql, isPmdBroken, isTableRequiredPrimaryKey, logRelaxed, modifiesParameters, modifyParameters, parameterizedPagination, qualified, setInsertBatchSize, setRemoveBatchSize, supportsOrdinalParams

Methods inherited from class org.batoo.jpa.jdbc.adapter.AbstractJdbcAdaptor

applyCast, applySubStr, castBoolean, getAdapter

Methods inherited from class java.lang.Object

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

Constructor Detail

H2Adaptor

public H2Adaptor()

Since:

2.0.0

Method Detail

applyConcat

public String applyConcat(List<String> arguments)

Applies the concat operation to the arguments.

Specified by:

applyConcat in class AbstractJdbcAdaptor

Parameters:

arguments - the arguments

Returns:

the concat SQL fragment

applyLikeEscape

public String applyLikeEscape(String escapePattern)

Appends the escape pattern.

Specified by:

applyLikeEscape in class AbstractJdbcAdaptor

Parameters:

escapePattern - the escape pattern

Returns:

the sql fragment to escape

applyLock

public String applyLock(String sql,
               javax.persistence.LockModeType lockMode)

Applies the lock to SQL string.

Specified by:

applyLock in class AbstractJdbcAdaptor

Parameters:

sql - the SQL to apply

lockMode - the lock mode

Returns:

the modified SQL

applyPagination

public String applyPagination(String sql,
                     int startPosition,
                     int maxResult)

Applies the pagination to SQL string.

Specified by:

applyPagination in class AbstractJdbcAdaptor

Parameters:

sql - the SQL to apply

startPosition - the start position

maxResult - the max number of results

Returns:

the modified SQL

applyTrim

public String applyTrim(javax.persistence.criteria.CriteriaBuilder.Trimspec trimspec,
               String trimChar,
               String argument)

Applies the trim to argument

Overrides:

applyTrim in class AbstractJdbcAdaptor

Parameters:

trimspec - the trim spec

trimChar - the trim character

argument - the argument

Returns:

the trim SQL fragment

createColumnDDL

public String createColumnDDL(AbstractColumn column)

Creates(generates) the BasicColumn Definition DDL for the column.

Specified by:

createColumnDDL in class JdbcAdaptor

Parameters:

column - the column definition to create the DDL from

Returns:

the BasicColumn Definition DDL For the column

createSequenceIfNecessary

public void createSequenceIfNecessary(DataSource datasource,
                             SequenceGenerator sequence)

Creates the sequence if not exists.

Specified by:

createSequenceIfNecessary in class JdbcAdaptor

Parameters:

datasource - the datasource to use

sequence - the sequence to create

getCastClassName

protected String getCastClassName(Class<?> clazz)

Returns the clazz to DB type data type.

Overrides:

getCastClassName in class AbstractJdbcAdaptor

Parameters:

clazz - the original cast class

Returns:

the converted DB type name

getColumnType

protected String getColumnType(AbstractColumn cd,
                   int sqlType)

Returns the data type of the column.

Overrides:

getColumnType in class JdbcAdaptor

Parameters:

cd - the column definition

sqlType - the sql type

Returns:

the data type

getDatabaseName

protected String getDatabaseName()

Returns the name of the database.

Specified by:

getDatabaseName in class JdbcAdaptor

Returns:

the name of the database

getDropForeignKeySql

protected String getDropForeignKeySql(String schema,
                          String table,
                          String foreignKey)

Returns the SQL to drop the foreign key.

Overrides:

getDropForeignKeySql in class JdbcAdaptor

Parameters:

schema - the name of the schema

table - the name of the table

foreignKey - the name of the foreign key

Returns:

the SQL to drop the foreign key

getNextSequence

public long getNextSequence(DataSource datasource,
                   String sequenceName)
                     throws SQLException

Returns next sequence number from the database.

Specified by:

getNextSequence in class JdbcAdaptor

Parameters:

datasource - the datasource to use

sequenceName - the name of the sequence

Returns:

the next sequence number

Throws:

SQLException - thrown in case of an SQL error

getPaginationParamsOrder

public JdbcAdaptor.PaginationParamsOrder getPaginationParamsOrder()

Returns the pagination params order for the adaptor.

Specified by:

getPaginationParamsOrder in class JdbcAdaptor

Returns:

the pagination params order for the adaptor

getProductNames

protected String[] getProductNames()

Specified by:

getProductNames in class AbstractJdbcAdaptor

Returns:

the JDBC Driver this adapter works with

getSelectLastIdentitySql

public String getSelectLastIdentitySql(BasicColumn identityColumn)

Returns the SQL to select the last identity generated.

Specified by:

getSelectLastIdentitySql in class JdbcAdaptor

Parameters:

identityColumn - the identity column

Returns:

the SQL to select the last identity generated

isForeignKeyHasDefaultIndex

protected boolean isForeignKeyHasDefaultIndex()

Underlining DB creates an index for foreign Keys

Specified by:

isForeignKeyHasDefaultIndex in class JdbcAdaptor

Returns:

db creates index

paginationNeedsMaxResultsAlways

public boolean paginationNeedsMaxResultsAlways()

Returns if pagination always needs the max results paramater.

Specified by:

paginationNeedsMaxResultsAlways in class JdbcAdaptor

Returns:

true if pagination always needs the max results paramater, false otherwise

paginationNeedsStartAlways

public boolean paginationNeedsStartAlways()

Returns if pagination always needs the start paramater.

Specified by:

paginationNeedsStartAlways in class JdbcAdaptor

Returns:

true if pagination always needs the start paramater, false otherwise

supports

public IdType supports(javax.persistence.GenerationType type)

Returns the id type supported.

If the idType is null, the adapter should suggest an IdType in return.

If the idType is some other value than null then the adapter should either return the same IdType if supported or null value in case the adapter does not support the specified IdType.

Specified by:

supports in class JdbcAdaptor

Parameters:

type - the id type

Returns:

the IdType selected, the Id passed or null

supportsNamedParams

public boolean supportsNamedParams()

Returns if the database supports named params i.e.: select * from mytable field = :p1.

Overrides:

supportsNamedParams in class JdbcAdaptor

Returns:

true if the database supports named params, false otherwise