com.amazonaws.services.dynamodbv2.xspec

Class BS

java.lang.Object

com.amazonaws.services.dynamodbv2.xspec.Operand

com.amazonaws.services.dynamodbv2.xspec.PathOperand

com.amazonaws.services.dynamodbv2.xspec.BS

@Beta
@Immutable
public final class BS
extends PathOperand

A path operand that refers to a binary set attribute in DynamoDB; used for building expressions.

Use ExpressionSpecBuilder.BS(String) to instantiate this class.

Method Summary

Methods

Modifier and Type	Method and Description
AddAction	append(byte[]... values) Returns an AddAction for build expression that would append the specified values to this binary set; or if the attribute does not already exist, add the new attribute and the value(s) to the item.
AddAction	append(ByteBuffer... values) Returns an AddAction for build expression that would append the specified values to this binary set; or if the attribute does not already exist, add the new attribute and the value(s) to the item.
FunctionCondition	contains(byte[] value) Returns an FunctionCondition object which represents an contains(path, operand) function condition where path refers to that of the current path operand; used for building expressions.
FunctionCondition	contains(ByteBuffer value) Returns an FunctionCondition object which represents an contains(path, operand) function condition where path refers to that of the current path operand; used for building expressions.
DeleteAction	delete(byte[]... values) Returns a DeleteAction for deleting the specified values from this binary set.
DeleteAction	delete(ByteBuffer... values) Returns a DeleteAction for deleting the specified values from this binary set.
ComparatorCondition	eq(BS 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[]... values) Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to the set of specified values) for building condition expression.
ComparatorCondition	eq(ByteBuffer... values) Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to the set of specified values) for building condition expression.
IfNotExistsFunction<BS>	ifNotExists(BS defaultValue) Returns an IfNotExistsFunction 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<BS>	ifNotExists(byte[]... defaultValue) Returns an IfNotExistsFunction 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<BS>	ifNotExists(ByteBuffer... defaultValue) Returns an IfNotExistsFunction 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.
ComparatorCondition	ne(BS 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[]... values) Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to the set of specified values) for building condition expression.
ComparatorCondition	ne(ByteBuffer... values) Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to the set of specified values) for building condition expression.
SetAction	set(BS 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<BS> ifNotExistsFunction) Returns a SetAction object used for building update expression.
SetAction	set(Set<byte[]> value) 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

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

Method Detail

eq

public ComparatorCondition eq(byte[]... values)

Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to the set of specified values) for building condition expression.

eq

public ComparatorCondition eq(ByteBuffer... values)

Returns a comparator condition (that evaluates to true if the value of the current attribute is equal to the set of specified values) for building condition expression.

eq

public ComparatorCondition eq(BS 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.

ne

public ComparatorCondition ne(byte[]... values)

Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to the set of specified values) for building condition expression.

ne

public ComparatorCondition ne(ByteBuffer... values)

Returns a comparator condition (that evaluates to true if the value of the current attribute is not equal to the set of specified values) for building condition expression.

ne

public ComparatorCondition ne(BS 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.

contains

public FunctionCondition contains(byte[] value)

Returns an FunctionCondition object which represents an contains(path, operand) function condition where path refers to that of the current path operand; used for building expressions.

 "contains (path, operand) ??? true if the attribute at the specified 
 path contains a particular operand. Note that the path and the operand 
 must be distinct; that is, contains (a, a) will return an error"
 

Parameters:

value - the value that will be used as the operand to the "contains" function condition.

contains

public FunctionCondition contains(ByteBuffer value)

Returns an FunctionCondition object which represents an contains(path, operand) function condition where path refers to that of the current path operand; used for building expressions.

 "contains (path, operand) ??? true if the attribute at the specified 
 path contains a particular operand. Note that the path and the operand 
 must be distinct; that is, contains (a, a) will return an error"
 

Parameters:

value - the value that will be used as the operand to the "contains" function condition.

set

public final 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 final 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.

append

public AddAction append(byte[]... values)

Returns an AddAction for build expression that would append the specified values to this binary set; or if the attribute does not already exist, add the new attribute and the value(s) to the item.

In general, DynamoDB recommends using SET rather than ADD.

append

public AddAction append(ByteBuffer... values)

Returns an AddAction for build expression that would append the specified values to this binary set; or if the attribute does not already exist, add the new attribute and the value(s) to the item.

In general, DynamoDB recommends using SET rather than ADD.

delete

public DeleteAction delete(byte[]... values)

Returns a DeleteAction for deleting the specified values from this binary set.

delete

public DeleteAction delete(ByteBuffer... values)

Returns a DeleteAction for deleting the specified values from this binary set.

ifNotExists

public IfNotExistsFunction<BS> ifNotExists(byte[]... defaultValue)

Returns an IfNotExistsFunction 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<BS> ifNotExists(ByteBuffer... defaultValue)

Returns an IfNotExistsFunction 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<BS> ifNotExists(BS defaultValue)

Returns an IfNotExistsFunction 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 set attribute) that will be used as the operand to the if_not_exists function call.

set

public SetAction set(BS 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(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<BS> 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.