software.amazon.awssdk.services.glue.model

Class DropNullFields

java.lang.Object

software.amazon.awssdk.services.glue.model.DropNullFields

All Implemented Interfaces:

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

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

Specifies a transform that removes columns from the dataset if all values in the column are 'null'. By default, Glue Studio will recognize null objects, but some values such as empty strings, strings that are "null", -1 integers or other placeholders such as zeros, are not automatically recognized as nulls.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	DropNullFields.Builder

Method Summary

Modifier and Type	Method and Description
static DropNullFields.Builder	builder()
boolean	equals(Object obj)
boolean	equalsBySdkFields(Object obj)
<T> Optional<T>	getValueForField(String fieldName, Class<T> clazz)
int	hashCode()
boolean	hasInputs() For responses, this returns true if the service returned a value for the Inputs property.
boolean	hasNullTextList() For responses, this returns true if the service returned a value for the NullTextList property.
List<String>	inputs() The data inputs identified by their node names.
String	name() The name of the transform node.
NullCheckBoxList	nullCheckBoxList() A structure that represents whether certain values are recognized as null values for removal.
List<NullValueField>	nullTextList() A structure that specifies a list of NullValueField structures that represent a custom null value such as zero or other value being used as a null placeholder unique to the dataset.
List<SdkField<?>>	sdkFields()
static Class<? extends DropNullFields.Builder>	serializableBuilderClass()
DropNullFields.Builder	toBuilder()
String	toString() Returns a string representation of this object.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

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

copy

Method Detail

name

public final String name()

The name of the transform node.

Returns:

The name of the transform node.

hasInputs

public final boolean hasInputs()

For responses, this returns true if the service returned a value for the Inputs property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.

inputs

public final List<String> inputs()

The data inputs identified by their node names.

Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasInputs() method.

Returns:

The data inputs identified by their node names.

nullCheckBoxList

public final NullCheckBoxList nullCheckBoxList()

A structure that represents whether certain values are recognized as null values for removal.

Returns:

A structure that represents whether certain values are recognized as null values for removal.

hasNullTextList

public final boolean hasNullTextList()

For responses, this returns true if the service returned a value for the NullTextList property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.

nullTextList

public final List<NullValueField> nullTextList()

A structure that specifies a list of NullValueField structures that represent a custom null value such as zero or other value being used as a null placeholder unique to the dataset.

The DropNullFields transform removes custom null values only if both the value of the null placeholder and the datatype match the data.

Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasNullTextList() method.

Returns:

A structure that specifies a list of NullValueField structures that represent a custom null value such as zero or other value being used as a null placeholder unique to the dataset.

The DropNullFields transform removes custom null values only if both the value of the null placeholder and the datatype match the data.

toBuilder

public DropNullFields.Builder toBuilder()

Specified by:

toBuilder in interface ToCopyableBuilder<DropNullFields.Builder,DropNullFields>

builder

public static DropNullFields.Builder builder()

serializableBuilderClass

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

hashCode

public final int hashCode()

Overrides:

hashCode in class Object

equals

public final boolean equals(Object obj)

Overrides:

equals in class Object

equalsBySdkFields

public final boolean equalsBySdkFields(Object obj)

Specified by:

equalsBySdkFields in interface SdkPojo

toString

public final String toString()

Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value.

Overrides:

toString in class Object

getValueForField

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

sdkFields

public final List<SdkField<?>> sdkFields()

Specified by:

sdkFields in interface SdkPojo