Package org.pjdbc.drivers

Enum Class FederatingDriver.MergeStrategy

java.lang.Object

java.lang.Enum<FederatingDriver.MergeStrategy>

org.pjdbc.drivers.FederatingDriver.MergeStrategy

All Implemented Interfaces:

Serializable, Comparable<FederatingDriver.MergeStrategy>, Constable

Enclosing class:

FederatingDriver

public static enum FederatingDriver.MergeStrategy
extends Enum<FederatingDriver.MergeStrategy>

Strategy for merging ResultSets from multiple sources.

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
CONCAT	Sequential iteration through all ResultSets (default)
FIRST_NON_EMPTY	Return first ResultSet that has rows
UNION_ALL	Same as CONCAT - combine all rows from all sources

Method Summary

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

CONCAT

public static final FederatingDriver.MergeStrategy CONCAT

Sequential iteration through all ResultSets (default)

UNION_ALL

public static final FederatingDriver.MergeStrategy UNION_ALL

Same as CONCAT - combine all rows from all sources

FIRST_NON_EMPTY

public static final FederatingDriver.MergeStrategy FIRST_NON_EMPTY

Return first ResultSet that has rows

Method Details

values

public static FederatingDriver.MergeStrategy[] values()

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

Returns:

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

valueOf

public static FederatingDriver.MergeStrategy valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null