Class PathOperand

java.lang.Object
com.amazonaws.services.dynamodbv2.xspec.Operand
com.amazonaws.services.dynamodbv2.xspec.PathOperand
Direct Known Subclasses:
B, BOOL, BS, L, M, N, NS, NULL, S, SS
@Beta public class PathOperand extends Operand
A path operand used in building DynamooDB expressions such as update expressions and condition (aka filter) expressions. In general, a path operand refers to an attribute of some specific type in DynamoDB.

Use ExpressionSpecBuilder.S(String), ExpressionSpecBuilder.N(String), etc. to instantiate path operands to refer to attributes of specific data types. You can also use ExpressionSpecBuilder.attribute(String) to instantiate a path operand with an unspecified data type.

See Also:

  • Method Details

    • exists

      public final FunctionCondition exists()
      Returns a function condition (that evaluates to true if the attribute referred to by this path operand exists) for building condition expression.

    • notExists

      public final FunctionCondition notExists()
      Returns a function condition (that evaluates to true if the attribute referred to by this path operand does not exist) for building condition expression.

    • remove

      public final RemoveAction remove()
      Returns a RemoveAction for removing the attribute referred to by this path operand from an item; used for building update expression.

    • toString

      public final String toString()
      Overrides:
      toString in class Object

    • hashCode

      public final int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public final boolean equals(Object o)
      Returns true if the given object is a path operand with the same path as that of the current path operand; false otherwise.
      Overrides:
      equals in class Object