org.datanucleus.store.schema.table

Class MemberColumnMappingImpl

java.lang.Object

org.datanucleus.store.schema.table.MemberColumnMappingImpl

All Implemented Interfaces:

MemberColumnMapping

public class MemberColumnMappingImpl
extends Object
implements MemberColumnMapping

Mapping definition for a member (field/property) representing the column(s) that it maps to. This class is required as an intermediary between Table and Column so that we can support mapping a member to multiple columns.

Field Summary

Fields

Modifier and Type	Field and Description
protected Column[]	columns
protected AbstractMemberMetaData	mmd
protected TypeConverter	typeConverter

Constructor Summary

Constructors

Constructor and Description
MemberColumnMappingImpl(AbstractMemberMetaData mmd, Column col)
MemberColumnMappingImpl(AbstractMemberMetaData mmd, Column[] cols, TypeConverter typeConv)

Method Summary

Modifier and Type	Method and Description
Column	getColumn(int position) Accessor for the column at the specified position.
Column[]	getColumns() Accessor for the columns representing this member.
AbstractMemberMetaData	getMemberMetaData()
int	getNumberOfColumns() Accessor for the number of columns that represents this member.
TypeConverter	getTypeConverter()
void	setTypeConverter(TypeConverter typeConv)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

mmd

protected AbstractMemberMetaData mmd

typeConverter

protected TypeConverter typeConverter

columns

protected Column[] columns

Constructor Detail

MemberColumnMappingImpl

public MemberColumnMappingImpl(AbstractMemberMetaData mmd,
                               Column col)

MemberColumnMappingImpl

public MemberColumnMappingImpl(AbstractMemberMetaData mmd,
                               Column[] cols,
                               TypeConverter typeConv)

Method Detail

setTypeConverter

public void setTypeConverter(TypeConverter typeConv)

Specified by:

setTypeConverter in interface MemberColumnMapping

getMemberMetaData

public AbstractMemberMetaData getMemberMetaData()

Specified by:

getMemberMetaData in interface MemberColumnMapping

getColumn

public Column getColumn(int position)

Description copied from interface: MemberColumnMapping

Accessor for the column at the specified position. 0 is the first column. If the position is out of range then returns null;

Specified by:

getColumn in interface MemberColumnMapping

Parameters:

position - The position, with origin 0

Returns:

The Column

getColumns

public Column[] getColumns()

Description copied from interface: MemberColumnMapping

Accessor for the columns representing this member.

Specified by:

getColumns in interface MemberColumnMapping

Returns:

The columns

getNumberOfColumns

public int getNumberOfColumns()

Description copied from interface: MemberColumnMapping

Accessor for the number of columns that represents this member.

Specified by:

getNumberOfColumns in interface MemberColumnMapping

Returns:

Number of columns

getTypeConverter

public TypeConverter getTypeConverter()

Specified by:

getTypeConverter in interface MemberColumnMapping

toString

public String toString()

Overrides:

toString in class Object