@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.
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 provides, 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, a JSON
classifier, or a custom CSV
classifier,
as specified in one of the fields in the Classifier
object.
Modifier and Type | Class and Description |
---|---|
static interface |
Classifier.Builder |
Modifier and Type | Method and Description |
---|---|
static Classifier.Builder |
builder() |
CsvClassifier |
csvClassifier()
A classifier for comma-separated values (CSV).
|
boolean |
equals(Object obj) |
boolean |
equalsBySdkFields(Object obj)
Indicates whether some other object is "equal to" this one by SDK fields.
|
<T> Optional<T> |
getValueForField(String fieldName,
Class<T> clazz) |
GrokClassifier |
grokClassifier()
A classifier that uses
grok . |
int |
hashCode() |
JsonClassifier |
jsonClassifier()
A classifier for JSON content.
|
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()
Returns a string representation of this object.
|
XMLClassifier |
xmlClassifier()
A classifier for XML content.
|
copy
public final GrokClassifier grokClassifier()
A classifier that uses grok
.
grok
.public final XMLClassifier xmlClassifier()
A classifier for XML content.
public final JsonClassifier jsonClassifier()
A classifier for JSON content.
public final CsvClassifier csvClassifier()
A classifier for comma-separated values (CSV).
public Classifier.Builder toBuilder()
ToCopyableBuilder
toBuilder
in interface ToCopyableBuilder<Classifier.Builder,Classifier>
public static Classifier.Builder builder()
public static Class<? extends Classifier.Builder> serializableBuilderClass()
public final boolean equalsBySdkFields(Object obj)
SdkPojo
SdkPojo
class,
and is generated based on a service model.
If an SdkPojo
class does not have any inherited fields, equalsBySdkFields
and equals
are essentially the same.
equalsBySdkFields
in interface SdkPojo
obj
- the object to be compared withpublic final String toString()
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