org.datanucleus.store.rdbms.schema

Class RDBMSTablePKInfo

java.lang.Object

org.datanucleus.store.rdbms.schema.RDBMSTablePKInfo

All Implemented Interfaces:

org.datanucleus.store.schema.ListStoreSchemaData, org.datanucleus.store.schema.StoreSchemaData

public class RDBMSTablePKInfo
extends Object
implements org.datanucleus.store.schema.ListStoreSchemaData

Representation of PK information for a table in the datastore. Supports the properties :-

• table_cat : catalog for this table (or null if not defined/supported)
• table_sch : schema for this table (or null if not defined/supported)
• table_name : name of the table

Constructor Summary

Constructors

Constructor and Description
RDBMSTablePKInfo()
RDBMSTablePKInfo(String catalog, String schema, String table) Constructor taking just the catalog, schema and table name directly.

Method Summary

Modifier and Type	Method and Description
void	addChild(org.datanucleus.store.schema.StoreSchemaData child) Method to add another PK col to the table schema.
void	addProperty(String name, Object value) Method to add a property for the table.
void	clearChildren() Method to remove all children.
boolean	equals(Object obj) Indicates whether some object is "equal to" this one.
org.datanucleus.store.schema.StoreSchemaData	getChild(int position) Accessor for the PK column at the position.
List	getChildren() Accessor for the primary keys
int	getNumberOfChildren() Accessor for the number of pk cols in the schema for this table.
org.datanucleus.store.schema.StoreSchemaData	getParent()
Object	getProperty(String name) Accessor for a property of the table.
int	hashCode() Returns a hash code value for this object.
void	setParent(org.datanucleus.store.schema.StoreSchemaData parent)
String	toString() Returns the string representation of this object.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

RDBMSTablePKInfo

public RDBMSTablePKInfo()

RDBMSTablePKInfo

public RDBMSTablePKInfo(String catalog,
                        String schema,
                        String table)

Constructor taking just the catalog, schema and table name directly.

Parameters:

catalog - Catalog containing the table

schema - Schema containing the table

table - The table name

Method Detail

addChild

public void addChild(org.datanucleus.store.schema.StoreSchemaData child)

Method to add another PK col to the table schema.

Specified by:

addChild in interface org.datanucleus.store.schema.ListStoreSchemaData

Parameters:

child - Column

clearChildren

public void clearChildren()

Method to remove all children.

Specified by:

clearChildren in interface org.datanucleus.store.schema.ListStoreSchemaData

getChild

public org.datanucleus.store.schema.StoreSchemaData getChild(int position)

Accessor for the PK column at the position.

Specified by:

getChild in interface org.datanucleus.store.schema.ListStoreSchemaData

Parameters:

position - Index

Returns:

PK column at the position

getChildren

public List getChildren()

Accessor for the primary keys

Specified by:

getChildren in interface org.datanucleus.store.schema.ListStoreSchemaData

Returns:

PK information

getNumberOfChildren

public int getNumberOfChildren()

Accessor for the number of pk cols in the schema for this table.

Specified by:

getNumberOfChildren in interface org.datanucleus.store.schema.ListStoreSchemaData

Returns:

Number of pk cols

addProperty

public void addProperty(String name,
                        Object value)

Method to add a property for the table.

Specified by:

addProperty in interface org.datanucleus.store.schema.StoreSchemaData

Parameters:

name - Name of property

value - Its value

getProperty

public Object getProperty(String name)

Accessor for a property of the table.

Specified by:

getProperty in interface org.datanucleus.store.schema.StoreSchemaData

Parameters:

name - Name of the property

Returns:

Its value, or null if not defined

getParent

public org.datanucleus.store.schema.StoreSchemaData getParent()

Specified by:

getParent in interface org.datanucleus.store.schema.ListStoreSchemaData

setParent

public void setParent(org.datanucleus.store.schema.StoreSchemaData parent)

Specified by:

setParent in interface org.datanucleus.store.schema.ListStoreSchemaData

equals

public final boolean equals(Object obj)

Indicates whether some object is "equal to" this one. Two RDBMSTableInfo are considered equal if their catalog, schema, table are all equal.

Overrides:

equals in class Object

Parameters:

obj - the reference object with which to compare

Returns:

true if this object is equal to the obj argument; false otherwise.

hashCode

public final int hashCode()

Returns a hash code value for this object.

Overrides:

hashCode in class Object

Returns:

hash code

toString

public String toString()

Returns the string representation of this object.

Overrides:

toString in class Object

Returns:

string representation of this object.