Class N
java.lang.Object
com.amazonaws.services.dynamodbv2.xspec.Operand
com.amazonaws.services.dynamodbv2.xspec.PathOperand
com.amazonaws.services.dynamodbv2.xspec.N
A path operand that refers to a number attribute in DynamoDB; used for building expressions.
Use ExpressionSpecBuilder.N(String)
to instantiate this class.
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Method Summary
Modifier and TypeMethodDescriptionReturns anAddAction
for build expression that would add the given value mathematically to the existing attribute; or if the attribute does not already exist, add the new attribute and the value to the item.Returns aBetweenCondition
that represents a BETWEEN comparison (that evaluates to true if the value of the current attribute is greater than or equal to the given low value, and less than or equal to the given high value) for building condition expression.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.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.Returns a comparator condition (that evaluates to true if the value of the current attribute is greater than or equal to that of the specified attribute) for building condition expression.Returns a comparator condition (that evaluates to true if the value of the current attribute is greater than or equal to the specified value) for building condition expression.Returns a comparator condition (that evaluates to true if the value of the current attribute is greater than that of the specified attribute) for building condition expression.Returns a comparator condition (that evaluates to true if the value of the current attribute is greater than the specified value) for building condition expression.ifNotExists
(N defaultValue) Returns anIfNotExists
object which represents an if_not_exists(path, operand) function call where path refers to that of the current attribute; used for building expressions.ifNotExists
(Number defaultValue) Returns anIfNotExists
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.final InCondition
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.final <T extends Number>
InConditionReturns 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.Returns a comparator condition (that evaluates to true if the value of the current attribute is less than or equal to that of the specified attribute) for building condition expression.Returns a comparator condition (that evaluates to true if the value of the current attribute is less than or equal to the specified value) for building condition expression.Returns a comparator condition (that evaluates to true if the value of the current attribute is less than that of the specified attribute) for building condition expression.Returns a comparator condition (that evaluates to true if the value of the current attribute is less than the specified value) for building condition expression.Returns aMinusOperation
object that represents the subtraction of the value of the given attribute from that of the current attribute; used for building update expression.Returns aMinusOperation
object that represents the subtraction of the given value from that of the current attribute; used for building update expression.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.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.Returns aPlusOperation
object that represents the addition of the value of the given attribute to that of the current attribute; used for building update expression.Returns aPlusOperation
that represents the addition of the given value to that of the current attribute; used for building update expression.set
(IfNotExistsFunction<N> ifNotExistsFunction) Returns aSetAction
object used for building update expression.final SetAction
set
(MinusOperation minusOperation) Returns aSetAction
object used for building update expression with the specifiedMinusOperation
.Returns aSetAction
object used for building update expression.final SetAction
set
(PlusOperation plusOperation) Returns aSetAction
object used for building update expression with the specifiedPlusOperation
.Returns aSetAction
object used for building update expression.
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Method Details
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eq
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
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. -
le
Returns a comparator condition (that evaluates to true if the value of the current attribute is less than or equal to the specified value) for building condition expression. -
le
Returns a comparator condition (that evaluates to true if the value of the current attribute is less than or equal to that of the specified attribute) for building condition expression. -
lt
Returns a comparator condition (that evaluates to true if the value of the current attribute is less than the specified value) for building condition expression. -
lt
Returns a comparator condition (that evaluates to true if the value of the current attribute is less than that of the specified attribute) for building condition expression. -
ge
Returns a comparator condition (that evaluates to true if the value of the current attribute is greater than or equal to the specified value) for building condition expression. -
ge
Returns a comparator condition (that evaluates to true if the value of the current attribute is greater than or equal to that of the specified attribute) for building condition expression. -
gt
Returns a comparator condition (that evaluates to true if the value of the current attribute is greater than the specified value) for building condition expression. -
gt
Returns a comparator condition (that evaluates to true if the value of the current attribute is greater than that of the specified attribute) for building condition expression. -
between
Returns aBetweenCondition
that represents a BETWEEN comparison (that evaluates to true if the value of the current attribute is greater than or equal to the given low value, and less than or equal to the given high value) for building condition expression. -
add
Returns anAddAction
for build expression that would add the given value mathematically to the existing attribute; or if the attribute does not already exist, add the new attribute and the value to the item.In general, DynamoDB recommends using SET rather than ADD.
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plus
Returns aPlusOperation
that represents the addition of the given value to that of the current attribute; used for building update expression.- Parameters:
value
- given value to be added to the value of the current attribute.
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plus
Returns aPlusOperation
object that represents the addition of the value of the given attribute to that of the current attribute; used for building update expression.- Parameters:
attr
- given attribute whose value is to be added to that of the current attribute
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minus
Returns aMinusOperation
object that represents the subtraction of the given value from that of the current attribute; used for building update expression.- Parameters:
value
- given value to be subtracted from the value of the current attribute.
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minus
Returns aMinusOperation
object that represents the subtraction of the value of the given attribute from that of the current attribute; used for building update expression.- Parameters:
attr
- given attribute whose value is to be subtracted from that of the current attribute
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set
Returns aSetAction
object used for building update expression with the specifiedPlusOperation
. If the current attribute doesn't exist, the returned object represents adding the result of the specified plus ('+') binary operation as an attribute to an item. If this attribute already exists, the returned object represents the value replacement of the current attribute by the result of the specified plus ('+') binary operation. -
set
Returns aSetAction
object used for building update expression with the specifiedMinusOperation
. If the current attribute doesn't exist, the returned object represents adding the result of the specified minus ('-') binary operation as an attribute to an item. If this attribute already exists, the returned object represents the value replacement of the current attribute by the result of the specified minus ('-') binary operation. -
in
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.
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in
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.
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set
Returns aSetAction
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
Returns aSetAction
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
Returns aSetAction
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 specifiedIfNotExists
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 specifiedIfNotExists
function. -
eq
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
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
Returns anIfNotExists
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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ifNotExists
Returns anIfNotExists
object which represents an if_not_exists(path, operand) function call where path refers to that of the current attribute; 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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