Package org.hibernate
Class Length
java.lang.Object
org.hibernate.Length
Defines a list of useful constant values that may be used
to specify long column lengths in the JPA
Column
annotation.
For example, @Column(length=LONG16)
would specify
that Hibernate should generate DDL with a column type
capable of holding strings with 16-bit lengths.
- Since:
- 6.0
- See Also:
-
Field Summary
Modifier and TypeFieldDescriptionstatic final int
The default length for a column in JPA.static final int
The default length for a LOB column, on databases where LOB columns have a length.static final int
Used to select a variable-length SQL type large enough to contain values of maximum length 32600.static final int
The maximum length that fits in 16 bits.static final int
The maximum length of a Java string or array, that is, the maximum length that fits in 32 bits. -
Method Summary
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Field Details
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DEFAULT
public static final int DEFAULTThe default length for a column in JPA. -
LONG
public static final int LONGUsed to select a variable-length SQL type large enough to contain values of maximum length 32600. This arbitrary-looking number was chosen because some databases support variable-length types right up to a limit that is just slightly below 32767. (For some, the limit is 32672 characters.)This is also the default length for a column declared using
@JdbcTypeCode(Types.LONGVARCHAR)
or@JdbcTypeCode(Types.LONGVARBINARY)
.For example,
@Column(length=LONG)
results in the column type:varchar(32600)
on h2, Db2, and PostgreSQL text
on MySQL clob
on Oracle varchar(max)
on SQL Server -
LONG16
public static final int LONG16The maximum length that fits in 16 bits. Used to select a variable-length SQL type large enough to accommodate values of maximum length 32767.For example,
@Column(length=LONG16)
results in the column type:varchar(32767)
on h2 and PostgreSQL text
on MySQL clob
on Oracle and Db2 varchar(max)
on SQL Server - See Also:
-
LONG32
public static final int LONG32The maximum length of a Java string or array, that is, the maximum length that fits in 32 bits. Used to select a variable-length SQL type large enough to accommodate any Java string up to the maximum possible length 2147483647.This is also the default length for a column declared using
@JdbcTypeCode(SqlTypes.LONG32VARCHAR)
or@JdbcTypeCode(SqlTypes.LONG32VARBINARY)
.For example,
@Column(length=LONG32)
results in the column type:text
on PostgreSQL longtext
on MySQL clob
on h2, Oracle, and Db2 varchar(max)
on SQL Server -
LOB_DEFAULT
public static final int LOB_DEFAULTThe default length for a LOB column, on databases where LOB columns have a length.
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