vortex

Class dbDescriptor

java.lang.Object

vortex.dbDescriptor

public class dbDescriptor
extends java.lang.Object

RDBMS data descriptors. After a fetch() is performed all the output columns will be described in these objects. Use dbCursor.numOutputCols() and dbCursor.getColDesc() to access a dbDescriptor.

Because all numeric data is retrieved in the network independent dbNumber format precision and scale can be used to determine the original numeric type.

Field Summary

Fields

Modifier and Type	Field and Description
int	cnl Name length.
int	dtd Original database data type.
int	dto Original data type.
int	flag Flag
int	length Maximum length of output column.
java.lang.String	name Name of the output column.
boolean	nullsAllowed NULL values allowed in underlying RDBMS column.
int	precision Precision of a numeric output column.
int	scale Scale of a numeric output column.
int	type Data type of output column.

Constructor Summary

Constructors

Constructor and Description
dbDescriptor()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isLargeObject() Return true if a Binary (BLOB) or Character (CLOB) Large OBject.
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

type

public int type

Data type of output column. The following are the possible types:

• 1 - Character
• 2 - Internal number (dbNumber)
• 10 - Blob (Binary Large OBject)
• 11 - Clob (Character Large OBject)
• 12 - Date
• 99 - Binary

dto

public int dto

Original data type.

dtd

public int dtd

Original database data type.

length

public int length

Maximum length of output column.

name

public java.lang.String name

Name of the output column. If the output column is an expression the name will depend on how the underlying RDBMS returns it.

nullsAllowed

public boolean nullsAllowed

NULL values allowed in underlying RDBMS column.

precision

public int precision

Precision of a numeric output column.

scale

public int scale

Scale of a numeric output column.

cnl

public int cnl

Name length.

flag

public int flag

Flag

Constructor Detail

dbDescriptor

public dbDescriptor()

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

isLargeObject

public boolean isLargeObject()

Return true if a Binary (BLOB) or Character (CLOB) Large OBject.