javax.jdo.annotations.Column - JDO annotation
javax.jdo.annotations
Annotation Column
- Target:
- Fields (including property get methods)
Annotation for a column in the database. Corresponds to the xml element "column".
- Since:
- JDO 2.1
String allowsNull
Whether the column allows null values to be inserted.
- Returns:
- whether the column allows null values to be inserted
- Default value:
- ""
- Since:
- JDO 2.1
String defaultValue
Default value for this column.
- Returns:
- the default value for this column
- Default value:
- ""
- Since:
- JDO 2.1
Vendor extensions.
- Returns:
- the vendor extensions
- Default value:
- {}
- Since:
- JDO 2.1
String insertValue
Value to be inserted when this is an "unmapped" column
- Returns:
- the value to be inserted when this is an "unmapped" column
- Default value:
- ""
- Since:
- JDO 2.1
String jdbcType
JDBC Type for this column.
- Returns:
- JDBC type for this column
- Default value:
- ""
- Since:
- JDO 2.1
int length
Maximum length of data stored in this column.
- Returns:
- the maximum length of data stored in this column
- Default value:
- -1
- Since:
- JDO 2.1
String name
Name of the column.
- Returns:
- the name of the column
- Default value:
- ""
- Since:
- JDO 2.1
int scale
Scale for the column when handling floating point values.
- Returns:
- the scale for the column when handling floating point values
- Default value:
- -1
- Since:
- JDO 2.1
String sqlType
SQL Type for this column.
- Returns:
- SQL type for this column
- Default value:
- ""
- Since:
- JDO 2.1
String target
Target column for this column in the other table when part of a foreign key relation.
- Returns:
- the target column in the other table for this column when part of a foreign key relation.
- Default value:
- ""
- Since:
- JDO 2.1
String targetMember
Target member in the other class or interface for this column when part of a bidirectional relation.
- Returns:
- the target member for this column when part of a bidirectional relation.
- Default value:
- ""
- Since:
- JDO 2.1
