Module io.github.mmm.orm

Package io.github.mmm.orm.ddl

Class DbColumnSpec

java.lang.Object

io.github.mmm.orm.ddl.DbElement

io.github.mmm.orm.ddl.DbColumnSpec

public class DbColumnSpec
extends DbElement

DbElement for a database column.

Field Summary

Fields

Modifier and Type	Field	Description
static final DbColumnSpec[]	NO_COLUMNS	Empty DbColumnSpec array.

Fields inherited from class io.github.mmm.orm.ddl.DbElement

name

Constructor Summary

Constructors

Constructor	Description
DbColumnSpec(io.github.mmm.property.ReadableProperty<?> property)	The constructor.
DbColumnSpec(io.github.mmm.property.ReadableProperty<?> property, DbTableSpec table)	The constructor.
DbColumnSpec(String name, io.github.mmm.property.ReadableProperty<?> property, DbTableSpec table)	The constructor.
DbColumnSpec(String name, io.github.mmm.property.ReadableProperty<?> property, DbTableSpec table, String declaration)	The constructor.

Method Summary

Modifier and Type	Method	Description
String	createName(DbNamingStrategy namingStrategy)
String	getDeclaration()
io.github.mmm.property.ReadableProperty<?>	getProperty()
DbTableSpec	getTable()

Methods inherited from class io.github.mmm.orm.ddl.DbElement

getName, hasName

Methods inherited from class java.lang.Object

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

Field Details

NO_COLUMNS

public static final DbColumnSpec[] NO_COLUMNS

Empty DbColumnSpec array.

Constructor Details

DbColumnSpec

public DbColumnSpec(io.github.mmm.property.ReadableProperty<?> property)

The constructor.

Parameters:

property - the property.

DbColumnSpec

public DbColumnSpec(io.github.mmm.property.ReadableProperty<?> property,
 DbTableSpec table)

The constructor.

Parameters:

property - the property.

table - the table.

DbColumnSpec

public DbColumnSpec(String name,
 io.github.mmm.property.ReadableProperty<?> property,
 DbTableSpec table)

The constructor.

Parameters:

name - the name.

property - the property.

table - the table.

DbColumnSpec

public DbColumnSpec(String name,
 io.github.mmm.property.ReadableProperty<?> property,
 DbTableSpec table,
 String declaration)

The constructor.

Parameters:

name - the name.

property - the property.

table - the table.

declaration - the explicit column declaration (database specific).

Method Details

getProperty

public io.github.mmm.property.ReadableProperty<?> getProperty()

Returns:

the associated property represented as column.

getTable

public DbTableSpec getTable()

Returns:

the DbTableSpec owning this column.

getDeclaration

public String getDeclaration()

Returns:

the column declaration (type). Typically null to derive it automatically from the property type.

createName

public String createName(DbNamingStrategy namingStrategy)

Specified by:

createName in class DbElement

Parameters:

namingStrategy - the DbNamingStrategy.

Returns:

the computed constraint name.