Class N
- java.lang.Object
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- com.amazonaws.services.dynamodbv2.xspec.Operand
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- com.amazonaws.services.dynamodbv2.xspec.PathOperand
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- com.amazonaws.services.dynamodbv2.xspec.N
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@Beta public final class N extends PathOperand
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
All Methods Instance Methods Concrete Methods Modifier and Type Method Description AddAction
add(Number value)
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.BetweenCondition
between(Number low, Number high)
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.ComparatorCondition
eq(N 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(Number 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
ge(N that)
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.ComparatorCondition
ge(Number value)
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.ComparatorCondition
gt(N that)
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.ComparatorCondition
gt(Number value)
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.IfNotExistsFunction<N>
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.IfNotExistsFunction<N>
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.InCondition
in(Number... 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.<T extends Number>
InConditionin(List<T> 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
le(N that)
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.ComparatorCondition
le(Number value)
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.ComparatorCondition
lt(N that)
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.ComparatorCondition
lt(Number value)
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.MinusOperation
minus(N attr)
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.MinusOperation
minus(Number value)
Returns aMinusOperation
object that represents the subtraction of the given value from that of the current attribute; used for building update expression.ComparatorCondition
ne(N 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(Number 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.PlusOperation
plus(N attr)
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.PlusOperation
plus(Number value)
Returns aPlusOperation
that represents the addition of the given value to that of the current attribute; used for building update expression.SetAction
set(IfNotExistsFunction<N> ifNotExistsFunction)
Returns aSetAction
object used for building update expression.SetAction
set(MinusOperation minusOperation)
Returns aSetAction
object used for building update expression with the specifiedMinusOperation
.SetAction
set(N source)
Returns aSetAction
object used for building update expression.SetAction
set(PlusOperation plusOperation)
Returns aSetAction
object used for building update expression with the specifiedPlusOperation
.SetAction
set(Number value)
Returns aSetAction
object used for building update expression.
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Method Detail
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eq
public ComparatorCondition eq(N 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.
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ne
public ComparatorCondition ne(N 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.
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le
public ComparatorCondition le(Number value)
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.
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le
public ComparatorCondition le(N that)
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.
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lt
public ComparatorCondition lt(Number value)
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.
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lt
public ComparatorCondition lt(N that)
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.
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ge
public ComparatorCondition ge(Number value)
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.
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ge
public ComparatorCondition ge(N that)
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.
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gt
public ComparatorCondition gt(Number value)
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.
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gt
public ComparatorCondition gt(N that)
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.
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between
public BetweenCondition between(Number low, Number high)
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.
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add
public AddAction add(Number value)
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
public PlusOperation plus(Number value)
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
public PlusOperation plus(N attr)
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
public MinusOperation minus(Number value)
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
public MinusOperation minus(N attr)
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
public final SetAction set(PlusOperation plusOperation)
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.
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set
public final SetAction set(MinusOperation minusOperation)
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.
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in
public final InCondition in(Number... 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.
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in
public final <T extends Number> InCondition in(List<T> 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.
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set
public SetAction set(N source)
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.
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set
public SetAction set(Number value)
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.
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set
public SetAction set(IfNotExistsFunction<N> ifNotExistsFunction)
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.
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eq
public ComparatorCondition eq(Number 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.
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ne
public ComparatorCondition ne(Number 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.
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ifNotExists
public IfNotExistsFunction<N> 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."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
public IfNotExistsFunction<N> 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."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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