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org.jdbf.engine.mapping
Class HighLowMap  

java.lang.Object
  org.jdbf.engine.mapping.GeneratorMap
      org.jdbf.engine.mapping.HighLowMap

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public class HighLowMap

extends GeneratorMap

The class provides mapping information for generation of keys using a key-values table. This is not the HighLow approach described by Scott Ambler in his paper titled Mapping Objects To Relational Databases Scott Ambler calls this the key-values approach, but others use "HighLow" to describe a modified key-values approach which does not use database access for each key.

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Field Summary
private  java.lang.String	high           High value
private  java.lang.String	keyColumn           The name of the column for the key value.
private  java.lang.Object	low           Low value
private  java.lang.String	nextColumn           The name of the column the low value
private  java.lang.String	table           The name of the table which holds the key-values.
private  java.lang.String	tableColumn           The name of the column for the table name.

 

Fields inherited from class org.jdbf.engine.mapping.GeneratorMap

className, type

 

Constructor Summary

HighLowMap(java.lang.String table, java.lang.String keyColumn, java.lang.String nextColumn, java.lang.String tableColumn)

 

Method Summary
java.lang.String	getHigh()
java.lang.String	getKeyColumn()
java.lang.Object	getLow()
java.lang.String	getNextColumn()
java.lang.String	getTable()
java.lang.String	getTableColumn()
java.lang.String	getType()           Return type of generator
void	setHigh(java.lang.String high)
void	setKeyColumn(java.lang.String keyColumn)
void	setLow(java.lang.Object low)
void	setNextColumn(java.lang.String nextColumn)
void	setTable(java.lang.String table)
void	setTableColumn(java.lang.String tableColumn)
java.lang.String	toString()           Return the object as String

 

Methods inherited from class org.jdbf.engine.mapping.GeneratorMap

setType

 

Methods inherited from class java.lang.Object

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

 

Field Detail

nextColumn

private java.lang.String nextColumn

The name of the column the low value

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keyColumn

private java.lang.String keyColumn

The name of the column for the key value.

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tableColumn

private java.lang.String tableColumn

The name of the column for the table name.

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high

private java.lang.String high

High value

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low

private java.lang.Object low

Low value

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table

private java.lang.String table

The name of the table which holds the key-values. It's multi-row table having two columns, one for the identifier for the table name and the other for the next key value of the corresponding table.

Constructor Detail

HighLowMap

public HighLowMap(java.lang.String table,
                  java.lang.String keyColumn,
                  java.lang.String nextColumn,
                  java.lang.String tableColumn)

Method Detail

getHigh

public java.lang.String getHigh()

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getLow

public java.lang.Object getLow()

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getTable

public java.lang.String getTable()

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getTableColumn

public java.lang.String getTableColumn()

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getType

public java.lang.String getType()

Description copied from class: GeneratorMap

Return type of generator

Overrides:

getType in class GeneratorMap

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getNextColumn

public java.lang.String getNextColumn()

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getKeyColumn

public java.lang.String getKeyColumn()

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setHigh

public void setHigh(java.lang.String high)

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setLow

public void setLow(java.lang.Object low)

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setNextColumn

public void setNextColumn(java.lang.String nextColumn)

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setKeyColumn

public void setKeyColumn(java.lang.String keyColumn)

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setTableColumn

public void setTableColumn(java.lang.String tableColumn)

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setTable

public void setTable(java.lang.String table)

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toString

public java.lang.String toString()

Description copied from class: GeneratorMap

Return the object as String

Overrides:

toString in class GeneratorMap

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Home >> All >> org >> jdbf >> engine >> [ mapping overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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