@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.

  • Method Summary

    Modifier and Type
    Method
    Description
    add(Number value)
    Returns an AddAction 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.
    between(Number low, Number high)
    Returns a BetweenCondition 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.
    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.
    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.
    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.
    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.
    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.
    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.
    ifNotExists(N defaultValue)
    Returns an IfNotExists 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 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.
    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.
    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.
    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.
    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.
    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.
    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.
    minus(N attr)
    Returns a MinusOperation object that represents the subtraction of the value of the given attribute from that of the current attribute; used for building update expression.
    minus(Number value)
    Returns a MinusOperation object that represents the subtraction of the given value from that of the current attribute; used for building update expression.
    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.
    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.
    plus(N attr)
    Returns a PlusOperation object that represents the addition of the value of the given attribute to that of the current attribute; used for building update expression.
    plus(Number value)
    Returns a PlusOperation that represents the addition of the given value to that of the current attribute; used for building update expression.
    set(IfNotExistsFunction<N> ifNotExistsFunction)
    Returns a SetAction object used for building update expression.
    final SetAction
    set(MinusOperation minusOperation)
    Returns a SetAction object used for building update expression with the specified MinusOperation.
    set(N source)
    Returns a SetAction object used for building update expression.
    final SetAction
    set(PlusOperation plusOperation)
    Returns a SetAction object used for building update expression with the specified PlusOperation.
    set(Number 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 Details

    • 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.
    • 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.
    • 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.
    • 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.
    • 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.
    • 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.
    • 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.
    • 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.
    • 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.
    • 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.
    • between

      public BetweenCondition between(Number low, Number high)
      Returns a BetweenCondition 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

      public AddAction add(Number value)
      Returns an AddAction 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.

    • plus

      public PlusOperation plus(Number value)
      Returns a PlusOperation 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.
    • plus

      public PlusOperation plus(N attr)
      Returns a PlusOperation 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
    • minus

      public MinusOperation minus(Number value)
      Returns a MinusOperation 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.
    • minus

      public MinusOperation minus(N attr)
      Returns a MinusOperation 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
    • set

      public final SetAction set(PlusOperation plusOperation)
      Returns a SetAction object used for building update expression with the specified PlusOperation. 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

      public final SetAction set(MinusOperation minusOperation)
      Returns a SetAction object used for building update expression with the specified MinusOperation. 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

      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.
    • 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.
    • set

      public SetAction set(N 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(Number 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<N> 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(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.
    • 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.
    • ifNotExists

      public IfNotExistsFunction<N> ifNotExists(Number 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<N> ifNotExists(N defaultValue)
      Returns an IfNotExists 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.