Package com.aceql.jdbc.commons.metadata

Enum ResultSetMetaDataPolicy

java.lang.Object

java.lang.Enum<ResultSetMetaDataPolicy>

com.aceql.jdbc.commons.metadata.ResultSetMetaDataPolicy

All Implemented Interfaces:

Serializable, Comparable<ResultSetMetaDataPolicy>, java.lang.constant.Constable

public enum ResultSetMetaDataPolicy
extends Enum<ResultSetMetaDataPolicy>

Defines the policy for ResultSetMetaData access:

• on: ResulSetMetaData will be always accessible, because downloaded along with ResultSet for each SELECT. This will allow to use ResultSet#getMetaData() calls, but SELECT calls will be a bit slower.
• off: ResulSetMetaData will always be null because not downloaded along with ResultSet for each SELECT call. Thus, SELECT calls will be faster.

Set the ResulSetMetaData Driver property to "on" or "off" to choose your preferred behavior. Default value for a new AceQLConnection is ResultSetMetaDataPolicy.on.

Since:

6.0

Author:

Nicolas de Pomereu

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
off	ResulSetMetaData will always be null because not downloaded along with ResultSet on each SELECT call.
on	ResulSetMetaData will be always accessible, because downloaded along with ResultSet on each SELECT call.

Method Summary

Modifier and Type	Method	Description
static ResultSetMetaDataPolicy	valueOf(String name)	Returns the enum constant of this type with the specified name.
static ResultSetMetaDataPolicy[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, describeConstable, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

on

public static final ResultSetMetaDataPolicy on

ResulSetMetaData will be always accessible, because downloaded along with ResultSet on each SELECT call.

off

public static final ResultSetMetaDataPolicy off

ResulSetMetaData will always be null because not downloaded along with ResultSet on each SELECT call.

Method Details

values

public static ResultSetMetaDataPolicy[] values()

Returns an array containing the constants of this enum type, in the order they are declared.

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ResultSetMetaDataPolicy valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null