wt.pds
Class NullColumnBuilder

java.lang.Object
  wt.pds.NullColumnBuilder

All Implemented Interfaces:

ColumnBuilder

public class NullColumnBuilder

extends Object

implements ColumnBuilder

This class implements building a SELECT NULL expression based on the SQL type.

Supported API: false

Extendable: false

Field Summary

private static String	CLASSNAME
private ColumnDescriptor	columnDescriptor
private boolean	numberType
private static String	RESOURCE

Constructor Summary

NullColumnBuilder(ColumnDescriptor a_columnDescriptor)


Supported API: false

Method Summary

void	append(String a_alias, StringBuffer a_buffer, boolean a_appendColumnAsAlias) Returns SELECT expression for this column.

Methods inherited from class java.lang.Object

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

Field Detail

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

CLASSNAME

private static final String CLASSNAME

numberType

private boolean numberType

columnDescriptor

private ColumnDescriptor columnDescriptor

Constructor Detail

NullColumnBuilder

public NullColumnBuilder(ColumnDescriptor a_columnDescriptor)
                  throws PersistenceException

Supported API: false

Parameters:

a_columnDescriptor -

Throws:

PersistenceException

Method Detail

append

public void append(String a_alias,
                   StringBuffer a_buffer,
                   boolean a_appendColumnAsAlias)
            throws WTException

Returns SELECT expression for this column.

Supported API: false

Specified by:

append in interface ColumnBuilder

Parameters:

a_alias -

a_buffer -

a_appendColumnAsAlias -

Throws:

WTException