Condition class

Represents the selection criteria for a Query or Scan operation:

• For a Query operation, Condition is used for specifying the KeyConditions to use when querying a table or an index. For KeyConditions, only the following comparison operators are supported:

  EQ | LE | LT | GE | GT | BEGINS_WITH | BETWEEN

  Condition is also used in a QueryFilter, which evaluates the query results and returns only the desired values.

• For a Scan operation, Condition is used in a ScanFilter, which evaluates the scan results and returns only the desired values.

Constructors

Condition({required ComparisonOperator comparisonOperator, List<AttributeValue>? attributeValueList})

Properties

attributeValueList → List<AttributeValue>?

One or more values to evaluate against the supplied attribute. The number of values in the list depends on the ComparisonOperator being used.

final

comparisonOperator → ComparisonOperator

A comparator for evaluating attributes. For example, equals, greater than, less than, etc.

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited