Annotation for a column in the database. Corresponds to the xml element "column".
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Since:
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JDO 2.1
Whether the column allows null values to be inserted.
Whether the column allows null values to be inserted.
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Returns:
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whether the column allows null values to be inserted
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Default value:
-
""
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Since:
-
JDO 2.1
Default value for this column.
Default value for this column.
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Returns:
-
the default value for this column
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Default value:
-
""
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Since:
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JDO 2.1
Vendor extensions.
Vendor extensions.
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Returns:
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the vendor extensions
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Default value:
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{}
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Since:
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JDO 2.1
Value to be inserted when this is an "unmapped" column
Value to be inserted when this is an "unmapped" column
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Returns:
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the value to be inserted when this is an "unmapped" column
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Default value:
-
""
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Since:
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JDO 2.1
JDBC Type for this column.
JDBC Type for this column.
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Returns:
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JDBC type for this column
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Default value:
-
""
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Since:
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JDO 2.1
Maximum length of data stored in this column.
Maximum length of data stored in this column.
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Returns:
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the maximum length of data stored in this column
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Default value:
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-1
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Since:
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JDO 2.1
Name of the column.
Name of the column.
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Returns:
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the name of the column
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Default value:
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""
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Since:
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JDO 2.1
Scale for the column when handling floating point values.
Scale for the column when handling floating point values.
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Returns:
-
the scale for the column when handling floating point values
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Default value:
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-1
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Since:
-
JDO 2.1
SQL Type for this column.
SQL Type for this column.
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Returns:
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SQL type for this column
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Default value:
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""
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Since:
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JDO 2.1
Target column for this column in the other table when part of a foreign key relation.
Target column for this column in the other table when part of a foreign key relation.
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Returns:
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the target column in the other table for this column when part of a foreign key relation.
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Default value:
-
""
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Since:
-
JDO 2.1
Target member in the other class or interface for this column when part of a bidirectional relation.
Target member in the other class or interface for this column when part of a bidirectional relation.
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Returns:
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the target member for this column when part of a bidirectional relation.
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Default value:
-
""
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Since:
-
JDO 2.1