Package org.hibernate.mapping

Class Column

java.lang.Object

org.hibernate.mapping.Column

All Implemented Interfaces:

Serializable, Cloneable, Selectable, ColumnTypeInformation

Direct Known Subclasses:

AggregateColumn, ExportableColumn

public class Column
extends Object
implements Selectable, Serializable, Cloneable, ColumnTypeInformation

A mapping model object representing a column of a relational database table.

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.hibernate.tool.schema.extract.spi.ColumnTypeInformation

EMPTY

Constructor Summary

Constructors

Constructor	Description
Column()
Column(String columnName)

Method Summary

Modifier and Type	Method	Description
String	checkConstraint()
Column	clone()	Shallow copy, the value is not copied
boolean	equals(Object object)
boolean	equals(Column column)
String	getAlias(Dialect dialect)
String	getAlias(Dialect dialect, Table table)	Generate a column alias that is unique across multiple tables
String	getAssignmentExpression()
String	getCanonicalName()
String	getCheckConstraint()
int	getColumnSize()	The column size (length).
Size	getColumnSize(Dialect dialect, Mapping mapping)
String	getComment()
String	getCustomRead()
String	getCustomReadExpression()	Any custom read expression for this selectable.
String	getCustomWrite()
String	getCustomWriteExpression()	Any custom write expression for this selectable.
int	getDecimalDigits()	The precision, for numeric types
String	getDefaultValue()
String	getGeneratedAs()
Long	getLength()
String	getName()
TruthValue	getNullable()	Is the column nullable.
Integer	getPrecision()
String	getQuotedName()	returns quoted name as it would be in the mapping file.
String	getQuotedName(Dialect d)
String	getReadExpr(Dialect dialect)
Integer	getScale()
String	getSpecializedTypeDeclaration()
String	getSqlType()
String	getSqlType(Metadata mapping)
String	getSqlType(TypeConfiguration typeConfiguration, Dialect dialect, Mapping mapping)	Deprecated. use getSqlType(Metadata)
Integer	getSqlTypeCode()	Returns SQL type code for this column, or null if the type code is unknown.
int	getSqlTypeCode(Mapping mapping)
String	getTemplate(Dialect dialect, TypeConfiguration typeConfiguration, SqmFunctionRegistry functionRegistry)
String	getText()	The selectable's "canonical" text representation
String	getText(Dialect d)	The selectable's text representation accounting for the Dialect's quoting, if quoted
int	getTypeCode()	The JDBC type-code.
int	getTypeIndex()
String	getTypeName()	The database specific type name.
Value	getValue()
String	getWriteExpr()
boolean	hasCheckConstraint()
boolean	hasCustomRead()
int	hashCode()
boolean	hasSpecializedTypeDeclaration()
boolean	isFormula()	Does this selectable represent a formula? true indicates it is a formula; false indicates it is a physical column
boolean	isNullable()
boolean	isQuoted()
boolean	isUnique()
void	setAssignmentExpression(String assignmentExpression)
void	setCheckConstraint(String checkConstraint)
void	setComment(String comment)
void	setCustomRead(String customRead)
void	setCustomWrite(String customWrite)
void	setDefaultValue(String defaultValue)
void	setGeneratedAs(String generatedAs)
void	setLength(Integer length)
void	setLength(Long length)
void	setName(String name)
void	setNullable(boolean nullable)
void	setPrecision(Integer precision)
void	setResolvedCustomRead(String customRead)
void	setScale(Integer scale)
void	setSpecializedTypeDeclaration(String specializedTypeDeclaration)
void	setSqlType(String sqlType)
void	setSqlTypeCode(Integer typeCode)
void	setTypeIndex(int typeIndex)
void	setUnique(boolean unique)
void	setValue(Value value)
String	toString()

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Column

public Column()

Column

public Column(String columnName)

Method Detail

getLength

public Long getLength()

setLength

public void setLength(Long length)

setLength

public void setLength(Integer length)

getValue

public Value getValue()

setValue

public void setValue(Value value)

getName

public String getName()

setName

public void setName(String name)

getQuotedName

public String getQuotedName()

returns quoted name as it would be in the mapping file.

getQuotedName

public String getQuotedName(Dialect d)

getAlias

public String getAlias(Dialect dialect)

Specified by:

getAlias in interface Selectable

getAlias

public String getAlias(Dialect dialect,
                       Table table)

Generate a column alias that is unique across multiple tables

Specified by:

getAlias in interface Selectable

isNullable

public boolean isNullable()

setNullable

public void setNullable(boolean nullable)

getTypeIndex

public int getTypeIndex()

setTypeIndex

public void setTypeIndex(int typeIndex)

isUnique

public boolean isUnique()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object object)

Overrides:

equals in class Object

equals

public boolean equals(Column column)

getSqlTypeCode

public int getSqlTypeCode(Mapping mapping)
                   throws MappingException

Throws:

MappingException

getSqlTypeCode

public Integer getSqlTypeCode()

Returns SQL type code for this column, or null if the type code is unknown.

Use getSqlTypeCode(Mapping) to retrieve the type code using Value associated with the column.

Returns:

sqlTypeCode if it is set, otherwise null.

setSqlTypeCode

public void setSqlTypeCode(Integer typeCode)

getSqlType

public String getSqlType(Metadata mapping)
                  throws HibernateException

Throws:

HibernateException

getSqlType

@Deprecated(since="6.2")
public String getSqlType(TypeConfiguration typeConfiguration,
                         Dialect dialect,
                         Mapping mapping)
                  throws HibernateException

Deprecated.

use getSqlType(Metadata)

Throws:

HibernateException

getTypeName

public String getTypeName()

Description copied from interface: ColumnTypeInformation

The database specific type name.

Specified by:

getTypeName in interface ColumnTypeInformation

Returns:

Type name

getNullable

public TruthValue getNullable()

Description copied from interface: ColumnTypeInformation

Is the column nullable. The database is allowed to report unknown, hence the use of TruthValue

Specified by:

getNullable in interface ColumnTypeInformation

Returns:

nullability.

getTypeCode

public int getTypeCode()

Description copied from interface: ColumnTypeInformation

The JDBC type-code.

Specified by:

getTypeCode in interface ColumnTypeInformation

Returns:

JDBC type-code

getColumnSize

public int getColumnSize()

Description copied from interface: ColumnTypeInformation

The column size (length).

Specified by:

getColumnSize in interface ColumnTypeInformation

Returns:

The column length

getDecimalDigits

public int getDecimalDigits()

Description copied from interface: ColumnTypeInformation

The precision, for numeric types

Specified by:

getDecimalDigits in interface ColumnTypeInformation

Returns:

The numeric precision

getColumnSize

public Size getColumnSize(Dialect dialect,
                          Mapping mapping)

getSqlType

public String getSqlType()

setSqlType

public void setSqlType(String sqlType)

setUnique

public void setUnique(boolean unique)

isQuoted

public boolean isQuoted()

toString

public String toString()

Overrides:

toString in class Object

setSpecializedTypeDeclaration

public void setSpecializedTypeDeclaration(String specializedTypeDeclaration)

getSpecializedTypeDeclaration

public String getSpecializedTypeDeclaration()

hasSpecializedTypeDeclaration

public boolean hasSpecializedTypeDeclaration()

getCheckConstraint

public String getCheckConstraint()

setCheckConstraint

public void setCheckConstraint(String checkConstraint)

hasCheckConstraint

public boolean hasCheckConstraint()

checkConstraint

public String checkConstraint()

getTemplate

public String getTemplate(Dialect dialect,
                          TypeConfiguration typeConfiguration,
                          SqmFunctionRegistry functionRegistry)

Specified by:

getTemplate in interface Selectable

hasCustomRead

public boolean hasCustomRead()

getReadExpr

public String getReadExpr(Dialect dialect)

getWriteExpr

public String getWriteExpr()

isFormula

public boolean isFormula()

Description copied from interface: Selectable

Does this selectable represent a formula? true indicates it is a formula; false indicates it is a physical column

Specified by:

isFormula in interface Selectable

getText

public String getText(Dialect d)

Description copied from interface: Selectable

The selectable's text representation accounting for the Dialect's quoting, if quoted

Specified by:

getText in interface Selectable

getText

public String getText()

Description copied from interface: Selectable

The selectable's "canonical" text representation

Specified by:

getText in interface Selectable

getCustomReadExpression

public String getCustomReadExpression()

Description copied from interface: Selectable

Any custom read expression for this selectable. Only pertinent for physical columns (not formulas)

Specified by:

getCustomReadExpression in interface Selectable

See Also:

ColumnTransformer

getCustomWriteExpression

public String getCustomWriteExpression()

Description copied from interface: Selectable

Any custom write expression for this selectable. Only pertinent for physical columns (not formulas)

Specified by:

getCustomWriteExpression in interface Selectable

See Also:

ColumnTransformer

getPrecision

public Integer getPrecision()

setPrecision

public void setPrecision(Integer precision)

getScale

public Integer getScale()

setScale

public void setScale(Integer scale)

getComment

public String getComment()

setComment

public void setComment(String comment)

getDefaultValue

public String getDefaultValue()

setDefaultValue

public void setDefaultValue(String defaultValue)

getGeneratedAs

public String getGeneratedAs()

setGeneratedAs

public void setGeneratedAs(String generatedAs)

getAssignmentExpression

public String getAssignmentExpression()

setAssignmentExpression

public void setAssignmentExpression(String assignmentExpression)

getCustomWrite

public String getCustomWrite()

setCustomWrite

public void setCustomWrite(String customWrite)

getCustomRead

public String getCustomRead()

setResolvedCustomRead

public void setResolvedCustomRead(String customRead)

setCustomRead

public void setCustomRead(String customRead)

getCanonicalName

public String getCanonicalName()

clone

public Column clone()

Shallow copy, the value is not copied

Overrides:

clone in class Object