com.blazebit.persistence.spi

Class JoinTable

java.lang.Object

com.blazebit.persistence.spi.JoinTable

public class JoinTable
extends Object

A structure for accessing join table information.

Since:

1.2.0

Author:

Christian Beikov

Constructor Summary

Constructors

Constructor and Description
JoinTable(String tableName, Map<String,String> idColumnMappings, Map<String,String> keyColumnMappings, Map<String,String> targetIdColumnMappings) Constructs a JoinTable.

Method Summary

Modifier and Type	Method and Description
Map<String,String>	getIdColumnMappings() Returns the foreign key mappings of the join tables column names to the owner table column names.
Map<String,String>	getKeyColumnMappings() Returns the column mappings of the key/index column if there are any, otherwise null.
String	getTableName() The name of the join table.
Map<String,String>	getTargetColumnMappings() Returns the foreign key mappings of the join tables column names to the target table column names.

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinTable

public JoinTable(String tableName,
                 Map<String,String> idColumnMappings,
                 Map<String,String> keyColumnMappings,
                 Map<String,String> targetIdColumnMappings)

Constructs a JoinTable.

Parameters:

tableName - The join table name

idColumnMappings - The id column mappings

keyColumnMappings - The key column mappings

targetIdColumnMappings - The target id column mappings

Method Detail

getTableName

public String getTableName()

The name of the join table.

Returns:

The join table name

getIdColumnMappings

public Map<String,String> getIdColumnMappings()

Returns the foreign key mappings of the join tables column names to the owner table column names. The keys are column names of the join table. Values are the column names of the owner table.

Returns:

The id column mappings

getKeyColumnMappings

public Map<String,String> getKeyColumnMappings()

Returns the column mappings of the key/index column if there are any, otherwise null. In case of a simple key/index type, this returns the column name mapping to itself. Otherwise returns foreign key mappings of the join tables key column names to the key target table column names. The keys are column names of the join table. Values are the column names of the key target table.

Returns:

The key column mappings

getTargetColumnMappings

public Map<String,String> getTargetColumnMappings()

Returns the foreign key mappings of the join tables column names to the target table column names. The keys are column names of the join table. Values are the column names of the target table.

Returns:

The target id column mappings