B (AWS SDK for Java

java.lang.Object
- com.amazonaws.services.dynamodbv2.xspec.Operand
- - com.amazonaws.services.dynamodbv2.xspec.PathOperand
  - - com.amazonaws.services.dynamodbv2.xspec.B

```
@Beta
 @Immutable
public final class B
extends PathOperand
```
A path operand that refers to a binary attribute in DynamoDB; used for building expressions.
Use ExpressionSpecBuilder.B(String) to instantiate this class.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`ComparatorCondition`	`eq(B that)` Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to that of the specified attribute) for building condition expression.
`ComparatorCondition`	`eq(byte[] value)` Returns a comparator condition (that evaluates to true if the attribute value referred to by this path operand is equal to the specified value) for building condition expression.
`ComparatorCondition`	`eq(ByteBuffer value)` Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to the specified value) for building condition expression.
`IfNotExistsFunction<B>`	`ifNotExists(B defaultValue)` Returns an `IfNotExists` object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions.
`IfNotExistsFunction<B>`	`ifNotExists(byte[] defaultValue)` Returns an `IfNotExists` object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions.
`IfNotExistsFunction<B>`	`ifNotExists(ByteBuffer defaultValue)` Returns an `IfNotExists` object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions.
`InCondition`	`in(byte[]... values)` Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the specified values) for building condition expression.
`InCondition`	`in(ByteBuffer... values)` Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the specified values) for building condition expression.
`InCondition`	`inByteBufferList(List<ByteBuffer> values)` Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the values in the specified list) for building condition expression.
`InCondition`	`inBytesList(List<byte[]> values)` Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the values in the specified list) for building condition expression.
`ComparatorCondition`	`ne(B that)` Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to that of the specified attribute) for building condition expression.
`ComparatorCondition`	`ne(byte[] value)` Returns a comparator condition (that evaluates to true if the attribute value referred to by this path operand is not equal to that of the specified path operand) for building condition expression.
`ComparatorCondition`	`ne(ByteBuffer value)` Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to the specified value) for building condition expression.
`SetAction`	`set(B source)` Returns a `SetAction` object used for building update expression.
`SetAction`	`set(byte[] value)` Returns a `SetAction` object used for building update expression.
`SetAction`	`set(ByteBuffer value)` Returns a `SetAction` object used for building update expression.
`SetAction`	`set(IfNotExistsFunction<B> ifNotExistsFunction)` Returns a `SetAction` object used for building update expression.

Methods inherited from class com.amazonaws.services.dynamodbv2.xspec.PathOperand
equals, exists, hashCode, notExists, remove, toString

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Method Detail
  - in
```
public InCondition in(ByteBuffer... values)
```
    Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the specified values) for building condition expression.
    
    Parameters:
    
    values - specified values. The number of values must be at least one and at most 100.
  - in
```
public InCondition in(byte[]... values)
```
    Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the specified values) for building condition expression.
    
    Parameters:
    
    values - specified values. The number of values must be at least one and at most 100.
  - inByteBufferList
```
public InCondition inByteBufferList(List<ByteBuffer> values)
```
    Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the values in the specified list) for building condition expression.
    
    Parameters:
    
    values - specified list of values. The number of values must be at least one and at most 100.
  - inBytesList
```
public InCondition inBytesList(List<byte[]> values)
```
    Returns an InCondition (that evaluates to true if the value of the current attribute is equal to any of the values in the specified list) for building condition expression.
    
    Parameters:
    
    values - specified list of values. The number of values must be at least one and at most 100.
  - eq
```
public ComparatorCondition eq(B that)
```
    Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to that of the specified attribute) for building condition expression.
  - eq
```
public ComparatorCondition eq(ByteBuffer value)
```
    Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to the specified value) for building condition expression.
  - ne
```
public ComparatorCondition ne(B that)
```
    Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to that of the specified attribute) for building condition expression.
  - ne
```
public ComparatorCondition ne(ByteBuffer value)
```
    Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to the specified value) for building condition expression.
  - ifNotExists
```
public IfNotExistsFunction<B> ifNotExists(ByteBuffer defaultValue)
```
    Returns an IfNotExists object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions.
```
 "if_not_exists (path, operand) – If the item does not contain an attribute 
 at the specified path, then if_not_exists evaluates to operand; otherwise, 
 it evaluates to path. You can use this function to avoid overwriting an 
 attribute already present in the item."
 
```
    Parameters:
    
    defaultValue - the default value that will be used as the operand to the if_not_exists function call.
  - ifNotExists
```
public IfNotExistsFunction<B> ifNotExists(B defaultValue)
```
    Returns an IfNotExists object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions.
```
 "if_not_exists (path, operand) – If the item does not contain an attribute 
 at the specified path, then if_not_exists evaluates to operand; otherwise, 
 it evaluates to path. You can use this function to avoid overwriting an 
 attribute already present in the item."
 
```
    Parameters:
    
    defaultValue - the default value (of another binary attribute) that will be used as the operand to the if_not_exists function call.
  - set
```
public SetAction set(B source)
```
    Returns a SetAction object used for building update expression. If the attribute referred to by this path operand doesn't exist, the returned object represents adding the attribute value of the specified source path operand to an item. If the current attribute already exists, the returned object represents the value replacement of the current attribute by the attribute value of the specified source path operand.
  - set
```
public SetAction set(ByteBuffer value)
```
    Returns a SetAction object used for building update expression. If the attribute referred to by this path operand doesn't exist, the returned object represents adding the specified value as an attribute to an item. If the attribute referred to by this path operand already exists, the returned object represents the value replacement of the current attribute by the specified value.
  - set
```
public SetAction set(byte[] value)
```
    Returns a SetAction object used for building update expression. If the attribute referred to by this path operand doesn't exist, the returned object represents adding the specified value as an attribute to an item. If the attribute referred to by this path operand already exists, the returned object represents the value replacement of the current attribute by the specified value.
  - set
```
public SetAction set(IfNotExistsFunction<B> ifNotExistsFunction)
```
    Returns a SetAction object used for building update expression. If the attribute referred to by this path operand doesn't exist, the returned object represents adding the value of evaluating the specified IfNotExists function as an attribute to an item. If the attribute referred to by this path operand already exists, the returned object represents the value replacement of the current attribute by the value of evaluating the specified IfNotExists function.
  - eq
```
public ComparatorCondition eq(byte[] value)
```
    Returns a comparator condition (that evaluates to true if the attribute value referred to by this path operand is equal to the specified value) for building condition expression.
  - ne
```
public ComparatorCondition ne(byte[] value)
```
    Returns a comparator condition (that evaluates to true if the attribute value referred to by this path operand is not equal to that of the specified path operand) for building condition expression.
  - ifNotExists
```
public IfNotExistsFunction<B> ifNotExists(byte[] defaultValue)
```
    Returns an IfNotExists object which represents an if_not_exists(path, operand) function call where path refers to that of the current path operand; used for building expressions.
```
 "if_not_exists (path, operand) – If the item does not contain an attribute 
 at the specified path, then if_not_exists evaluates to operand; otherwise, 
 it evaluates to path. You can use this function to avoid overwriting an 
 attribute already present in the item."
 
```
    Parameters:
    
    defaultValue - the default value that will be used as the operand to the if_not_exists function call.

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Class B

Method Summary

Methods inherited from class com.amazonaws.services.dynamodbv2.xspec.PathOperand

Methods inherited from class java.lang.Object

Method Detail

in

in

inByteBufferList

inBytesList

eq

eq

ne

ne

ifNotExists

ifNotExists

set

set

set

set

eq

ne

ifNotExists