public enum BatchFetchStyle extends Enum<BatchFetchStyle>
AvailableSettings.BATCH_FETCH_STYLE
) settingEnum Constant and Description |
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DYNAMIC
Dynamically builds its SQL based on the actual number of available ids.
|
LEGACY
The legacy algorithm where we keep a set of pre-built batch sizes based on
ArrayHelper.getBatchSizes(int) . |
PADDED
Still keeps the concept of pre-built batch sizes, but uses the next-bigger batch size and pads the extra
identifier placeholders.
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Modifier and Type | Method and Description |
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static BatchFetchStyle |
byName(String name) |
static BatchFetchStyle |
interpret(Object setting) |
static BatchFetchStyle |
valueOf(String name)
Returns the enum constant of this type with the specified name.
|
static BatchFetchStyle[] |
values()
Returns an array containing the constants of this enum type, in
the order they are declared.
|
public static final BatchFetchStyle LEGACY
ArrayHelper.getBatchSizes(int)
. Batches are performed
using the next-smaller pre-built batch size from the number of existing batchable identifiers.
For example, with a batch-size setting of 32 the pre-built batch sizes would be [32, 16, 10, 9, 8, 7, .., 1].
An attempt to batch load 31 identifiers would result in batches of 16, 10, and 5.public static final BatchFetchStyle PADDED
public static final BatchFetchStyle DYNAMIC
public static BatchFetchStyle[] values()
for (BatchFetchStyle c : BatchFetchStyle.values()) System.out.println(c);
public static BatchFetchStyle valueOf(String name)
name
- the name of the enum constant to be returned.IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is nullpublic static BatchFetchStyle byName(String name)
public static BatchFetchStyle interpret(Object setting)
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