software.amazon.awssdk.services.glue.model

Class Classifier

java.lang.Object

software.amazon.awssdk.services.glue.model.Classifier

All Implemented Interfaces:

Serializable, SdkPojo, ToCopyableBuilder<Classifier.Builder,Classifier>

@Generated(value="software.amazon.awssdk:codegen")
public final class Classifier
extends Object
implements SdkPojo, Serializable, ToCopyableBuilder<Classifier.Builder,Classifier>

Classifiers are triggered during a crawl task. A classifier checks whether a given file is in a format it can handle, and if it is, the classifier creates a schema in the form of a StructType object that matches that data format.

You can use the standard classifiers that AWS Glue supplies, or you can write your own classifiers to best categorize your data sources and specify the appropriate schemas to use for them. A classifier can be a grok classifier, an XML classifier, or a JSON classifier, as specified in one of the fields in the Classifier object.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Classifier.Builder

Method Summary

Modifier and Type	Method and Description
static Classifier.Builder	builder()
boolean	equals(Object obj)
<T> Optional<T>	getValueForField(String fieldName, Class<T> clazz)
GrokClassifier	grokClassifier() A GrokClassifier object.
int	hashCode()
JsonClassifier	jsonClassifier() A JsonClassifier object.
List<SdkField<?>>	sdkFields()
static Class<? extends Classifier.Builder>	serializableBuilderClass()
Classifier.Builder	toBuilder() Take this object and create a builder that contains all of the current property values of this object.
String	toString()
XMLClassifier	xmlClassifier() An XMLClassifier object.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface software.amazon.awssdk.utils.builder.ToCopyableBuilder

copy

Method Detail

grokClassifier

public GrokClassifier grokClassifier()

A GrokClassifier object.

Returns:

A GrokClassifier object.

xmlClassifier

public XMLClassifier xmlClassifier()

An XMLClassifier object.

Returns:

An XMLClassifier object.

jsonClassifier

public JsonClassifier jsonClassifier()

A JsonClassifier object.

Returns:

A JsonClassifier object.

toBuilder

public Classifier.Builder toBuilder()

Description copied from interface: ToCopyableBuilder

Take this object and create a builder that contains all of the current property values of this object.

Specified by:

toBuilder in interface ToCopyableBuilder<Classifier.Builder,Classifier>

Returns:

a builder for type T

builder

public static Classifier.Builder builder()

serializableBuilderClass

public static Class<? extends Classifier.Builder> serializableBuilderClass()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

getValueForField

public <T> Optional<T> getValueForField(String fieldName,
                                        Class<T> clazz)

sdkFields

public List<SdkField<?>> sdkFields()

Specified by:

sdkFields in interface SdkPojo

Returns:

List of SdkField in this POJO. May be empty list but should never be null.