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javax.persistence.Column

JPA Annotation Column Target: METHOD, FIELD Implemented Interfaces: Annotation Specifies the mapped column for a persistent property or field. If no Column annotation is specified, the default values apply. Example 1: @ Column (name="DESC", nullable=false, length=512) public String getDescription

javax.persistence.Column.precision

JPA Annotation Attribute in javax.persistence. Column int precision default 0 (Optional) The precision for a decimal (exact numeric) column . (Applies only if a decimal column is used.) Value must be set by developer if used when generating the DDL for the column . Since: JPA 1.0

javax.persistence.Column.scale

JPA Annotation Attribute in javax.persistence. Column int scale default 0 (Optional) The scale for a decimal (exact numeric) column . (Applies only if a decimal column is used.) Since: JPA 1.0

javax.persistence.Column.columnDefinition

JPA Annotation Attribute in javax.persistence. Column String columnDefinition default "" (Optional) The SQL fragment that is used when generating the DDL for the column . Defaults to the generated SQL to create a column of the inferred type. Since: JPA 1.0

javax.persistence.AttributeOverride.column

JPA Annotation Attribute in javax.persistence.AttributeOverride Column column default null (Required) The column that is being mapped to the persistent attribute. The mapping type will remain the same as is defined in the embeddable class or mapped superclass. Since: JPA 1.0

javax.persistence.Column.length

JPA Annotation Attribute in javax.persistence. Column int length default 255 (Optional) The column length. (Applies only if a string-valued column is used.) Since: JPA 1.0

javax.persistence.Column.table

JPA Annotation Attribute in javax.persistence. Column String table default "" (Optional) The name of the table that contains the column . If absent the column is assumed to be in the primary table. Since: JPA 1.0

javax.persistence.Column.unique

JPA Annotation Attribute in javax.persistence. Column boolean unique default false (Optional) Whether the column is a unique key. This is a shortcut for the UniqueConstraint annotation at the table level and is useful for when the unique key constraint corresponds to only a single column

javax.persistence.FieldResult.column

JPA Annotation Attribute in javax.persistence.FieldResult String column default null Name of the column in the SELECT clause - i.e., column aliases, if applicable. Since: JPA 1.0

javax.persistence.Column.updatable

JPA Annotation Attribute in javax.persistence. Column boolean updatable default true (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Since: JPA 1.0

javax.persistence.Column.insertable

JPA Annotation Attribute in javax.persistence. Column boolean insertable default true (Optional) Whether the column is included in SQL INSERT statements generated by the persistence provider. Since: JPA 1.0

javax.persistence.Column.name

JPA Annotation Attribute in javax.persistence. Column String name default "" (Optional) The name of the column . Defaults to the property or field name. Since: JPA 1.0

javax.persistence.Column.nullable

JPA Annotation Attribute in javax.persistence. Column boolean nullable default true (Optional) Whether the database column is nullable. Since: JPA 1.0

javax.persistence.ConstructorResult.columns

JPA Annotation Attribute in javax.persistence.ConstructorResult ColumnResult [] columns default null (Required) The mapping of columns in the SELECT list to the arguments of the intended constructor, in order. Since: JPA 2.1

javax.jdo.annotations.Column

JDO Annotation Column Target: ElementType.FIELD, ElementType.METHOD Implemented Interfaces: Annotation Annotation for a column in the database. Corresponds to the xml element " column ". Since: JDO 2.1 Public Annotation Attributes String allowsNull default "" Whether the column allows null values

javax.jdo.annotations.Persistent.columns

JDO Annotation Attribute in javax.jdo.annotations.Persistent Column [] columns default {} Column definition(s) for this member. Used for mapping multiple columns to the same member, for example relationships with multiple column foreign keys. Since: JDO 2.1

javax.jdo.annotations.Join.columns

JDO Annotation Attribute in javax.jdo.annotations.Join Column [] columns default {} Detail definition of the join column (s). This is needed for more than one join column . Since: JDO 2.1

javax.jdo.annotations.Columns

JDO Annotation Columns Target: ElementType.FIELD, ElementType.METHOD, ElementType.TYPE Implemented Interfaces: Annotation Annotation for a group of columns . Since: JDO 2.1 Public Annotation Attributes Column [] value default null The columns annotation information. Since: JDO 2.1

javax.jdo.annotations.Unique.columns

JDO Annotation Attribute in javax.jdo.annotations.Unique Column [] columns default {} Columns that compose this unique constraint. Since: JDO 2.1

javax.jdo.annotations.PrimaryKey.columns

JDO Annotation Attribute in javax.jdo.annotations.PrimaryKey Column [] columns default {} The column (s) for the primary key Since: JDO 2.1

javax.jdo.annotations.Order.columns

JDO Annotation Attribute in javax.jdo.annotations.Order Column [] columns default {} The definition of the column (s) to use for ordering. Since: JDO 2.1

javax.jdo.annotations.Key.columns

JDO Annotation Attribute in javax.jdo.annotations.Key Column [] columns default {} The column (s) for the key Since: JDO 2.1

javax.jdo.annotations.Value.columns

JDO Annotation Attribute in javax.jdo.annotations.Value Column [] columns default {} The column (s) for the value. Since: JDO 2.1

javax.jdo.annotations.Version.columns

JDO Annotation Attribute in javax.jdo.annotations.Version Column [] columns default {} The column (s) making up the version. Since: JDO 2.1

javax.jdo.annotations.Column.target

JDO Annotation Attribute in javax.jdo.annotations. Column String target default "" Target column for this column in the other table when part of a foreign key relation. Since: JDO 2.1

javax.jdo.annotations.DatastoreIdentity.columns

JDO Annotation Attribute in javax.jdo.annotations.DatastoreIdentity Column [] columns default {} The column (s) making up the datastore identity. Since: JDO 2.1

javax.jdo.annotations.Columns.value

JDO Annotation Attribute in javax.jdo.annotations. Columns Column [] value default null The columns annotation information. Since: JDO 2.1

javax.jdo.annotations.Index.columns

JDO Annotation Attribute in javax.jdo.annotations.Index Column [] columns default {} Columns that compose this index. Since: JDO 2.1

javax.jdo.annotations.ForeignKey.columns

JDO Annotation Attribute in javax.jdo.annotations.ForeignKey Column [] columns default {} Columns that compose this foreign key. Since: JDO 2.1

javax.jdo.annotations.Discriminator.columns

JDO Annotation Attribute in javax.jdo.annotations.Discriminator Column [] columns default {} The column (s) making up the discriminator. Since: JDO 2.1

javax.jdo.annotations.Element.columns

JDO Annotation Attribute in javax.jdo.annotations.Element Column [] columns default {} The column (s) for the element. Since: JDO 2.1

javax.jdo.annotations.PrimaryKey.column

JDO Annotation Attribute in javax.jdo.annotations.PrimaryKey String column default "" Name of the column to use for the primary key Since: JDO 2.1

javax.jdo.annotations.Persistent.column

JDO Annotation Attribute in javax.jdo.annotations.Persistent String column default "" Column name where the values are stored for this member. Since: JDO 2.1

javax.jdo.annotations.Order.column

JDO Annotation Attribute in javax.jdo.annotations.Order String column default "" The name of the column to use for ordering the elements of the member. Since: JDO 2.1

javax.jdo.annotations.Key.column

JDO Annotation Attribute in javax.jdo.annotations.Key String column default "" Name of the column to store the key in. Since: JDO 2.1

javax.jdo.annotations.Value.column

JDO Annotation Attribute in javax.jdo.annotations.Value String column default "" Name of the column to store the value in. Since: JDO 2.1

javax.jdo.annotations.Version.column

JDO Annotation Attribute in javax.jdo.annotations.Version String column default "" Name of the column for the version. Since: JDO 2.1

javax.jdo.annotations.Column.length

JDO Annotation Attribute in javax.jdo.annotations. Column int length default -1 Maximum length of data stored in this column . Since: JDO 2.1

javax.jdo.annotations.Column.scale

JDO Annotation Attribute in javax.jdo.annotations. Column int scale default -1 Scale for the column when handling floating point values. Since: JDO 2.1

javax.jdo.annotations.Column.targetMember

JDO Annotation Attribute in javax.jdo.annotations. Column String targetMember default "" Target member in the other class or interface for this column when part of a bidirectional relation. Since: JDO 2.1

javax.jdo.annotations.Column.sqlType

JDO Annotation Attribute in javax.jdo.annotations. Column String sqlType default "" SQL Type for this column . Since: JDO 2.1

javax.jdo.annotations.Column.jdbcType

JDO Annotation Attribute in javax.jdo.annotations. Column String jdbcType default "" JDBC Type for this column . Since: JDO 2.1

javax.jdo.annotations.Column.name

JDO Annotation Attribute in javax.jdo.annotations. Column String name default "" Name of the column . Since: JDO 2.1

javax.jdo.annotations.DatastoreIdentity.column

JDO Annotation Attribute in javax.jdo.annotations.DatastoreIdentity String column default "" Name of the column for the datastore identity Since: JDO 2.1

javax.jdo.annotations.Column.defaultValue

JDO Annotation Attribute in javax.jdo.annotations. Column String defaultValue default "" Default value for this column . Since: JDO 2.1

javax.jdo.annotations.Column.allowsNull

JDO Annotation Attribute in javax.jdo.annotations. Column String allowsNull default "" Whether the column allows null values to be inserted. Since: JDO 2.1

javax.jdo.annotations.Column.insertValue

JDO Annotation Attribute in javax.jdo.annotations. Column String insertValue default "" Value to be inserted when this is an "unmapped" column Since: JDO 2.1

javax.jdo.annotations.Join.column

JDO Annotation Attribute in javax.jdo.annotations.Join String column default "" Name of the column in the join table. Since: JDO 2.1

javax.jdo.annotations.Discriminator.column

JDO Annotation Attribute in javax.jdo.annotations.Discriminator String column default "" Name of the column for the discriminator Since: JDO 2.1

javax.jdo.annotations.Element.column

JDO Annotation Attribute in javax.jdo.annotations.Element String column default "" Name of the column to store the element in. Since: JDO 2.1