Enum EasyFormatPlugin.ScanFrameworkVersion
java.lang.Object
java.lang.Enum<EasyFormatPlugin.ScanFrameworkVersion>
org.apache.drill.exec.store.dfs.easy.EasyFormatPlugin.ScanFrameworkVersion
- All Implemented Interfaces:
Serializable
,Comparable<EasyFormatPlugin.ScanFrameworkVersion>
- Enclosing class:
- EasyFormatPlugin<T extends FormatPluginConfig>
public static enum EasyFormatPlugin.ScanFrameworkVersion
extends Enum<EasyFormatPlugin.ScanFrameworkVersion>
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Enum Constant Summary
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Method Summary
Modifier and TypeMethodDescriptionReturns the enum constant of this type with the specified name.values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Details
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CLASSIC
Use the "classic" low-level implementation based on the Scan Batch. -
EVF_V1
Use the first-generation "EVF" framework. -
EVF_V2
Use the second-generation EVF framework. New code should use this option. EVF V2 automatically handle LIMIT push-down. Readers that use it should check the return value ofstartBatch()
to detect when they should stop reading. Readers can also callatLimit()
after eachharvest()
call to detect the limit and report EOF.
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Method Details
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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
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valueOf
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 nameNullPointerException
- if the argument is null
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