org.mybatis.dynamic.sql

Class SqlColumn<T>

java.lang.Object

org.mybatis.dynamic.sql.SqlColumn<T>

All Implemented Interfaces:

BasicColumn, BindableColumn<T>, SortSpecification

public class SqlColumn<T>
extends Object
implements BindableColumn<T>, SortSpecification

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SqlColumn.Builder

Field Summary

Fields

Modifier and Type	Field and Description
protected String	alias
protected boolean	isDescending
protected JDBCType	jdbcType
protected String	name
protected SqlTable	table
protected String	typeHandler

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SqlColumn(SqlColumn<?> sqlColumn)

Method Summary

Modifier and Type	Method and Description
Optional<String>	alias() Returns the columns alias if one has been specified.
String	aliasOrName() Return the column alias or column name.
SqlColumn<T>	as(String alias) Override the base method definition to make it more specific to this interface.
SortSpecification	descending() Returns a new instance of the SortSpecification that should render as descending in an ORDER BY clause.
boolean	isDescending() Return true if the sort order is descending.
Optional<JDBCType>	jdbcType()
String	name()
static <T> SqlColumn<T>	of(String name, SqlTable table)
static <T> SqlColumn<T>	of(String name, SqlTable table, JDBCType jdbcType)
String	renderWithTableAlias(TableAliasCalculator tableAliasCalculator) Returns the name of the item aliased with a table name if appropriate.
Optional<String>	typeHandler()
static SqlColumn.Builder	withName(String name)
<S> SqlColumn<S>	withTypeHandler(String typeHandler)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.mybatis.dynamic.sql.BasicColumn

renderWithTableAndColumnAlias

Field Detail

name

protected String name

table

protected SqlTable table

jdbcType

protected JDBCType jdbcType

isDescending

protected boolean isDescending

alias

protected String alias

typeHandler

protected String typeHandler

Constructor Detail

SqlColumn

protected SqlColumn(SqlColumn<?> sqlColumn)

Method Detail

name

public String name()

jdbcType

public Optional<JDBCType> jdbcType()

Specified by:

jdbcType in interface BindableColumn<T>

alias

public Optional<String> alias()

Description copied from interface: BasicColumn

Returns the columns alias if one has been specified.

Specified by:

alias in interface BasicColumn

Returns:

the column alias

typeHandler

public Optional<String> typeHandler()

Specified by:

typeHandler in interface BindableColumn<T>

descending

public SortSpecification descending()

Description copied from interface: SortSpecification

Returns a new instance of the SortSpecification that should render as descending in an ORDER BY clause.

Specified by:

descending in interface SortSpecification

Returns:

new instance of SortSpecification

as

public SqlColumn<T> as(String alias)

Description copied from interface: BindableColumn

Override the base method definition to make it more specific to this interface.

Specified by:

as in interface BasicColumn

Specified by:

as in interface BindableColumn<T>

Parameters:

alias - the column alias to set

Returns:

new instance with alias set

isDescending

public boolean isDescending()

Description copied from interface: SortSpecification

Return true if the sort order is descending.

Specified by:

isDescending in interface SortSpecification

Returns:

true if the SortSpcification should render as descending

aliasOrName

public String aliasOrName()

Description copied from interface: SortSpecification

Return the column alias or column name.

Specified by:

aliasOrName in interface SortSpecification

Returns:

the column alias if one has been specified by the user, or else the column name

renderWithTableAlias

public String renderWithTableAlias(TableAliasCalculator tableAliasCalculator)

Description copied from interface: BasicColumn

Returns the name of the item aliased with a table name if appropriate. For example, "a.foo". This is appropriate for where clauses and order by clauses.

Specified by:

renderWithTableAlias in interface BasicColumn

Parameters:

tableAliasCalculator - the table alias calculator for the current renderer

Returns:

the item name with the table alias applied

withTypeHandler

public <S> SqlColumn<S> withTypeHandler(String typeHandler)

of

public static <T> SqlColumn<T> of(String name,
                                  SqlTable table)

of

public static <T> SqlColumn<T> of(String name,
                                  SqlTable table,
                                  JDBCType jdbcType)

withName

public static SqlColumn.Builder withName(String name)