org.databene.jdbacl.dialect

Class H2Dialect

java.lang.Object

org.databene.jdbacl.DatabaseDialect

org.databene.jdbacl.dialect.H2Dialect

public class H2Dialect
extends DatabaseDialect

DatabaseDialect implementation for the H2 database. See H2 SQL grammar

Created: 28.03.2010 07:54:19

Since:

0.6.0

Author:

Volker Bergmann

Field Summary

Fields inherited from class org.databene.jdbacl.DatabaseDialect

logger, quoteTableNames, sequenceSupported

Constructor Summary

Constructors

Constructor and Description
H2Dialect()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isDefaultCatalog(String catalog, String user)
boolean	isDefaultSchema(String schema, String user)
boolean	isDeterministicFKName(String fkName) Determines if a foreign key constraint name was explicitly specified creation or at least generated by the database in a deterministic (reproducible) way
boolean	isDeterministicIndexName(String indexName) Determines if an index name was explicitly specified creation or at least generated by the database in a deterministic (reproducible) way
boolean	isDeterministicPKName(String pkName) Determines if a primary key constraint name was explicitly specified on creation or at least generated by the database in a deterministic (reproducible) way
boolean	isDeterministicUKName(String ukName) Determines if a unique key constraint name was explicitly specified on creation or at least generated by the database in a deterministic (reproducible) way
boolean	isSequenceBoundarySupported()
DBSequence[]	querySequences(Connection connection)
String	regexQuery(String expression, boolean not, String regex) Renders a query condition for a regular expression.
String	renderDropSequence(String name)
String	renderFetchSequenceValue(String sequenceName)
void	restrictRownums(int rowOffset, int rowCount, Query query) restricts the query result set to a certain number of rows, optionally starting from an offset.
void	setNextSequenceValue(String sequenceName, long value, Connection connection)
String	setSequenceValue(String sequenceName, long value)
boolean	supportsRegex() Tells if the database supports regular expressions

Methods inherited from class org.databene.jdbacl.DatabaseDialect

checkSequenceSupport, createSequence, formatTimestamp, formatValue, getReservedWords, getSequence, getSystem, importReservedWords, insert, isNotOne, isReservedWord, isSequenceSupported, queryPackages, queryTriggers, renderCase, renderCreateSequence, renderSequenceNameAndType, sequenceNoCycle, trim, update

Methods inherited from class java.lang.Object

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

Constructor Detail

H2Dialect

public H2Dialect()

Method Detail

isDefaultCatalog

public boolean isDefaultCatalog(String catalog,
                       String user)

Specified by:

isDefaultCatalog in class DatabaseDialect

isDefaultSchema

public boolean isDefaultSchema(String schema,
                      String user)

Specified by:

isDefaultSchema in class DatabaseDialect

isSequenceBoundarySupported

public boolean isSequenceBoundarySupported()

Overrides:

isSequenceBoundarySupported in class DatabaseDialect

querySequences

public DBSequence[] querySequences(Connection connection)
                            throws SQLException

Overrides:

querySequences in class DatabaseDialect

Throws:

SQLException

renderFetchSequenceValue

public String renderFetchSequenceValue(String sequenceName)

Overrides:

renderFetchSequenceValue in class DatabaseDialect

setNextSequenceValue

public void setNextSequenceValue(String sequenceName,
                        long value,
                        Connection connection)
                          throws SQLException

Overrides:

setNextSequenceValue in class DatabaseDialect

Throws:

SQLException

setSequenceValue

public String setSequenceValue(String sequenceName,
                      long value)

renderDropSequence

public String renderDropSequence(String name)

Overrides:

renderDropSequence in class DatabaseDialect

isDeterministicPKName

public boolean isDeterministicPKName(String pkName)

Description copied from class: DatabaseDialect

Determines if a primary key constraint name was explicitly specified on creation or at least generated by the database in a deterministic (reproducible) way

Specified by:

isDeterministicPKName in class DatabaseDialect

isDeterministicUKName

public boolean isDeterministicUKName(String ukName)

Description copied from class: DatabaseDialect

Determines if a unique key constraint name was explicitly specified on creation or at least generated by the database in a deterministic (reproducible) way

Specified by:

isDeterministicUKName in class DatabaseDialect

isDeterministicFKName

public boolean isDeterministicFKName(String fkName)

Description copied from class: DatabaseDialect

Determines if a foreign key constraint name was explicitly specified creation or at least generated by the database in a deterministic (reproducible) way

Specified by:

isDeterministicFKName in class DatabaseDialect

isDeterministicIndexName

public boolean isDeterministicIndexName(String indexName)

Description copied from class: DatabaseDialect

Determines if an index name was explicitly specified creation or at least generated by the database in a deterministic (reproducible) way

Specified by:

isDeterministicIndexName in class DatabaseDialect

supportsRegex

public boolean supportsRegex()

Description copied from class: DatabaseDialect

Tells if the database supports regular expressions

Overrides:

supportsRegex in class DatabaseDialect

regexQuery

public String regexQuery(String expression,
                boolean not,
                String regex)

Description copied from class: DatabaseDialect

Renders a query condition for a regular expression.

Overrides:

regexQuery in class DatabaseDialect

Parameters:

expression - a column name or a SQL value expression to be checked with a regular expression

not - if set to true, the query fits expressions which do not match the regular expression

regex - the regular expression to check with

Returns:

a string with a SQL query condition.

restrictRownums

public void restrictRownums(int rowOffset,
                   int rowCount,
                   Query query)

restricts the query result set to a certain number of rows, optionally starting from an offset.

Specified by:

restrictRownums in class DatabaseDialect

Parameters:

rowOffset - the number of rows to skip from the beginning of the result set; use 0 for not skipping any.

rowCount - the number of rows to read; use 0 for unlimited access