wt.introspection
Class TableInfo

java.lang.Object
  wt.introspection.TableInfo

All Implemented Interfaces:

Externalizable, Serializable

Direct Known Subclasses:

BaseTableInfo, DatabaseViewInfo

public abstract class TableInfo

extends Object

implements Externalizable

TableInfo is the class for providing database table meta-data

Supported API: false

Extendable: false

See Also:

WTIntrospector, ClassInfo, BaseTableInfo, DatabaseViewInfo, ColumnDescriptor, Serialized Form

Field Summary

protected static int	COLUMN_NAME_MAX_LENGTH
protected ColumnDescriptor[]	columns
static long	externalizationVersionUID Version identifier for managing compatibility and evolution of externalizable classes.
protected ClassInfo	owner
private static String	RESOURCE
(package private) static long	serialVersionUID
private String	tablename
(package private) static boolean	VERBOSE

Constructor Summary

TableInfo()
Constructor

TableInfo(String table_name)

Method Summary

protected abstract void	accumulateColumns()
abstract ColumnDescriptor	getColumnDescriptor(String name) Obtain a column descriptor by name
ColumnDescriptor[]	getColumnDescriptors() Answer an array of column descriptors
String	getTablename() Answer database table name.
void	readExternal(ObjectInput input) Reads the non-transient fields of this class from an external source.
void	setOwner(ClassInfo owner_info)
void	writeExternal(ObjectOutput output) Writes the non-transient fields of this class to an external source.

Methods inherited from class java.lang.Object

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

Field Detail

externalizationVersionUID

public static final long externalizationVersionUID

Version identifier for managing compatibility and evolution of externalizable classes.

See Also:

Constant Field Values

serialVersionUID

static final long serialVersionUID

See Also:

Constant Field Values

VERBOSE

static boolean VERBOSE

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

COLUMN_NAME_MAX_LENGTH

protected static final int COLUMN_NAME_MAX_LENGTH

See Also:

Constant Field Values

tablename

private String tablename

owner

protected ClassInfo owner

columns

protected transient ColumnDescriptor[] columns

Constructor Detail

TableInfo

public TableInfo()

Constructor

TableInfo

public TableInfo(String table_name)

Method Detail

accumulateColumns

protected abstract void accumulateColumns()
                                   throws WTIntrospectionException

Throws:

WTIntrospectionException

getColumnDescriptor

public abstract ColumnDescriptor getColumnDescriptor(String name)
                                              throws WTIntrospectionException

Obtain a column descriptor by name

Returns:

ColumnDescriptor

Throws:

WTIntrospectionException

getColumnDescriptors

public ColumnDescriptor[] getColumnDescriptors()
                                        throws WTIntrospectionException

Answer an array of column descriptors

Returns:

ColumnDescriptor[]

Throws:

WTIntrospectionException

getTablename

public String getTablename()

Answer database table name.

Returns:

The name of the database table.

readExternal

public void readExternal(ObjectInput input)
                  throws IOException,
                         ClassNotFoundException

Reads the non-transient fields of this class from an external source.

Specified by:

readExternal in interface Externalizable

Parameters:

input -

Throws:

IOException

ClassNotFoundException

setOwner

public void setOwner(ClassInfo owner_info)

writeExternal

public void writeExternal(ObjectOutput output)
                   throws IOException

Writes the non-transient fields of this class to an external source.

Specified by:

writeExternal in interface Externalizable

Parameters:

output -

Throws:

IOException