io.requery.sql

Class SchemaModifier

java.lang.Object

io.requery.sql.SchemaModifier

public class SchemaModifier
extends Object

Given a EntityModel generates and executes DDL statements to create the corresponding tables in a SQL database.

Constructor Summary

Constructors

Constructor and Description
SchemaModifier(Configuration configuration) Create a new SchemaModifier instance with a specific Mapping.
SchemaModifier(DataSource dataSource, EntityModel model) Create a new SchemaModifier instance with the default Mapping.

Method Summary

Modifier and Type	Method and Description
<T> void	addColumn(Attribute<T,?> attribute) Alters the attribute's table and add's the column representing the given Attribute.
void	createTables(TableCreationMode mode) Create the tables over the connection.
String	createTablesString(TableCreationMode mode) Convenience method to generated the create table statements as a string.
<T> void	dropColumn(Attribute<T,?> attribute) Alters the attribute's table and removes the column representing the given Attribute.
void	dropTables() Drop all tables in the schema.
<T> String	tableCreateStatement(Type<T> type, TableCreationMode mode)

Methods inherited from class java.lang.Object

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

Constructor Detail

SchemaModifier

public SchemaModifier(DataSource dataSource,
                      EntityModel model)

Create a new SchemaModifier instance with the default Mapping.

Parameters:

dataSource - DataSource to use

model - entity model

SchemaModifier

public SchemaModifier(Configuration configuration)

Create a new SchemaModifier instance with a specific Mapping.

Parameters:

configuration - data configuration

Method Detail

createTables

public void createTables(TableCreationMode mode)

Create the tables over the connection.

Parameters:

mode - creation mode.

Throws:

TableModificationException - if the creation fails.

createTablesString

public String createTablesString(TableCreationMode mode)

Convenience method to generated the create table statements as a string.

Parameters:

mode - table creation mode

Returns:

DDL string

dropTables

public void dropTables()

Drop all tables in the schema. Note if the platform supports if exists that will be used in the statement, if not and the table doesn't exist an exception will be thrown.

addColumn

public <T> void addColumn(Attribute<T,?> attribute)

Alters the attribute's table and add's the column representing the given Attribute.

Type Parameters:

T - parent type of the attribute

Parameters:

attribute - being added

dropColumn

public <T> void dropColumn(Attribute<T,?> attribute)

Alters the attribute's table and removes the column representing the given Attribute.

Type Parameters:

T - parent type of the attribute

Parameters:

attribute - being added

tableCreateStatement

public <T> String tableCreateStatement(Type<T> type,
                                       TableCreationMode mode)