org.apache.hadoop.hive.ql.metadata

Class ForeignKeyInfo

java.lang.Object

org.apache.hadoop.hive.ql.metadata.ForeignKeyInfo

All Implemented Interfaces:

Serializable

public class ForeignKeyInfo
extends Object
implements Serializable

ForeignKeyInfo is a metadata structure containing the foreign keys associated with a table. The fields include the child database name, the child table name, mapping of the constraint name to the foreign key columns associated with the key. The foreign key column structure contains the parent database name, parent table name, associated parent column name, associated child column name and the position of the foreign key column in the key. The position is one-based index.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	ForeignKeyInfo.ForeignKeyCol

Constructor Summary

Constructors

Constructor and Description
ForeignKeyInfo()
ForeignKeyInfo(List<org.apache.hadoop.hive.metastore.api.SQLForeignKey> fks, String childTableName, String childDatabaseName)

Method Summary

Modifier and Type	Method and Description
String	getChildDatabaseName()
String	getChildTableName()
Map<String,List<ForeignKeyInfo.ForeignKeyCol>>	getForeignKeys()
static boolean	isNotEmpty(ForeignKeyInfo info)
void	setChildDatabaseName(String databaseName)
void	setChildTableName(String tableName)
void	setForeignKeys(Map<String,List<ForeignKeyInfo.ForeignKeyCol>> foreignKeys)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ForeignKeyInfo

public ForeignKeyInfo()

ForeignKeyInfo

public ForeignKeyInfo(List<org.apache.hadoop.hive.metastore.api.SQLForeignKey> fks,
                      String childTableName,
                      String childDatabaseName)

Method Detail

getChildTableName

public String getChildTableName()

getChildDatabaseName

public String getChildDatabaseName()

getForeignKeys

public Map<String,List<ForeignKeyInfo.ForeignKeyCol>> getForeignKeys()

setChildTableName

public void setChildTableName(String tableName)

setChildDatabaseName

public void setChildDatabaseName(String databaseName)

setForeignKeys

public void setForeignKeys(Map<String,List<ForeignKeyInfo.ForeignKeyCol>> foreignKeys)

toString

public String toString()

Overrides:

toString in class Object

isNotEmpty

public static boolean isNotEmpty(ForeignKeyInfo info)