java.lang.Object
- software.amazon.awssdk.services.s3.model.Checksum

All Implemented Interfaces:

Serializable, SdkPojo, ToCopyableBuilder<Checksum.Builder,Checksum>
```
@Generated("software.amazon.awssdk:codegen")
public final class Checksum
extends Object
implements SdkPojo, Serializable, ToCopyableBuilder<Checksum.Builder,Checksum>
```
Contains all the possible checksum or digest values for an object.

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static interface Checksum.Builder

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static Checksum.Builder`	`builder()`
`String`	`checksumCRC32()`	The Base64 encoded, 32-bit `CRC-32 checksum` of the object.
`String`	`checksumCRC32C()`	The Base64 encoded, 32-bit `CRC-32C` checksum of the object.
`String`	`checksumCRC64NVME()`	The Base64 encoded, 64-bit `CRC-64NVME` checksum of the object.
`String`	`checksumSHA1()`	The Base64 encoded, 160-bit `SHA-1` digest of the object.
`String`	`checksumSHA256()`	The Base64 encoded, 256-bit `SHA-256` digest of the object.
`ChecksumType`	`checksumType()`	The checksum type that is used to calculate the object’s checksum value.
`String`	`checksumTypeAsString()`	The checksum type that is used to calculate the object’s checksum value.
`boolean`	`equals(Object obj)`
`boolean`	`equalsBySdkFields(Object obj)`
`<T> Optional<T>`	`getValueForField(String fieldName, Class<T> clazz)`
`int`	`hashCode()`
`Map<String,SdkField<?>>`	`sdkFieldNameToField()`
`List<SdkField<?>>`	`sdkFields()`
`static Class<? extends Checksum.Builder>`	`serializableBuilderClass()`
`Checksum.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
  - checksumCRC32
```
public final String checksumCRC32()
```
    The Base64 encoded, 32-bit CRC-32 checksum of the object. This checksum is only be present if the checksum was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
    
    Returns:
    
    The Base64 encoded, 32-bit CRC-32 checksum of the object. This checksum is only be present if the checksum was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
  - checksumCRC32C
```
public final String checksumCRC32C()
```
    The Base64 encoded, 32-bit CRC-32C checksum of the object. This checksum is only present if the checksum was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
    
    Returns:
    
    The Base64 encoded, 32-bit CRC-32C checksum of the object. This checksum is only present if the checksum was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
  - checksumCRC64NVME
```
public final String checksumCRC64NVME()
```
    The Base64 encoded, 64-bit CRC-64NVME checksum of the object. This checksum is present if the object was uploaded with the CRC-64NVME checksum algorithm, or if the object was uploaded without a checksum (and Amazon S3 added the default checksum, CRC-64NVME, to the uploaded object). For more information, see Checking object integrity in the Amazon S3 User Guide.
    
    Returns:
    
    The Base64 encoded, 64-bit CRC-64NVME checksum of the object. This checksum is present if the object was uploaded with the CRC-64NVME checksum algorithm, or if the object was uploaded without a checksum (and Amazon S3 added the default checksum, CRC-64NVME, to the uploaded object). For more information, see Checking object integrity in the Amazon S3 User Guide.
  - checksumSHA1
```
public final String checksumSHA1()
```
    The Base64 encoded, 160-bit SHA-1 digest of the object. This will only be present if the object was uploaded with the object. When you use the API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
    
    Returns:
    
    The Base64 encoded, 160-bit SHA-1 digest of the object. This will only be present if the object was uploaded with the object. When you use the API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
  - checksumSHA256
```
public final String checksumSHA256()
```
    The Base64 encoded, 256-bit SHA-256 digest of the object. This will only be present if the object was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
    
    Returns:
    
    The Base64 encoded, 256-bit SHA-256 digest of the object. This will only be present if the object was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it's a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide.
  - checksumType
```
public final ChecksumType checksumType()
```
    The checksum type that is used to calculate the object’s checksum value. For more information, see Checking object integrity in the Amazon S3 User Guide.
    
    If the service returns an enum value that is not available in the current SDK version, checksumType will return ChecksumType.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from checksumTypeAsString().
    
    Returns:
    
    The checksum type that is used to calculate the object’s checksum value. For more information, see Checking object integrity in the Amazon S3 User Guide.
    
    See Also:
    
    ChecksumType
  - checksumTypeAsString
```
public final String checksumTypeAsString()
```
    The checksum type that is used to calculate the object’s checksum value. For more information, see Checking object integrity in the Amazon S3 User Guide.
    
    If the service returns an enum value that is not available in the current SDK version, checksumType will return ChecksumType.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from checksumTypeAsString().
    
    Returns:
    
    The checksum type that is used to calculate the object’s checksum value. For more information, see Checking object integrity in the Amazon S3 User Guide.
    
    See Also:
    
    ChecksumType
  - toBuilder
```
public Checksum.Builder toBuilder()
```
    Specified by:
    
    toBuilder in interface ToCopyableBuilder<Checksum.Builder,Checksum>
  - builder
```
public static Checksum.Builder builder()
```
  - serializableBuilderClass
```
public static Class<? extends Checksum.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
  - sdkFieldNameToField
```
public final Map<String,SdkField<?>> sdkFieldNameToField()
```
    Specified by:
    
    sdkFieldNameToField in interface SdkPojo

Class Checksum

Nested Class Summary

Method Summary

Methods inherited from class java.lang.Object

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

Method Detail

checksumCRC32

checksumCRC32C

checksumCRC64NVME

checksumSHA1

checksumSHA256

checksumType

checksumTypeAsString

toBuilder

builder

serializableBuilderClass

hashCode

equals

equalsBySdkFields

toString

getValueForField

sdkFields

sdkFieldNameToField