Class DynamoUpdate
The DynamoUpdate class contains static methods representing native DynamoDB
update operators. These methods are only useful in Set(...,...)
constructs to express DynamoDB conditions. When used in code directly, these methods
throw InvalidOperationException.
Inheritance
Namespace: LambdaSharp.DynamoDB.Native
Assembly: LambdaSharp.DynamoDB.Native.dll
Syntax
public static class DynamoUpdateMethods
IfNotExists<T>(T, T)
The IfNotExists<T>(T, T) method represents the if_not_exists(path, value) DynamoDB operation.
Declaration
public static T IfNotExists<T>(T attribute, T value)Parameters
| Type | Name | Description |
|---|---|---|
| T | attribute | The record property to check. |
| T | value | The value to use if the record property does not exist. |
Returns
| Type | Description |
|---|---|
| T |
Type Parameters
| Name | Description |
|---|---|
| T | The type of the record property. |
IfNotExists<T>(IDictionary<String, T>, IDictionary<String, T>)
The IfNotExists<T>(IDictionary<String, T>, IDictionary<String, T>) method represents the if_not_exists(path, value) DynamoDB operation.
Declaration
public static IDictionary<string, T> IfNotExists<T>(IDictionary<string, T> attribute, IDictionary<string, T> value)Parameters
| Type | Name | Description |
|---|---|---|
| System.Collections.Generic.IDictionary<System.String, T> | attribute | The record property to check. |
| System.Collections.Generic.IDictionary<System.String, T> | value | The value to use if the record property does not exist. |
Returns
| Type | Description |
|---|---|
| System.Collections.Generic.IDictionary<System.String, T> |
Type Parameters
| Name | Description |
|---|---|
| T | The type of the record property. |
IfNotExists<T>(IList<T>, IList<T>)
The IfNotExists<T>(IList<T>, IList<T>) method represents the if_not_exists(path, value) DynamoDB operation.
Declaration
public static IList<T> IfNotExists<T>(IList<T> attribute, IList<T> value)Parameters
| Type | Name | Description |
|---|---|---|
| System.Collections.Generic.IList<T> | attribute | The record property to check. |
| System.Collections.Generic.IList<T> | value | The value to use if the record property does not exist. |
Returns
| Type | Description |
|---|---|
| System.Collections.Generic.IList<T> |
Type Parameters
| Name | Description |
|---|---|
| T | The type of the record property. |
IfNotExists<T>(ISet<T>, ISet<T>)
The IfNotExists<T>(ISet<T>, ISet<T>) method represents the if_not_exists(path, value) DynamoDB operation.
Declaration
public static ISet<T> IfNotExists<T>(ISet<T> attribute, ISet<T> value)Parameters
| Type | Name | Description |
|---|---|---|
| System.Collections.Generic.ISet<T> | attribute | The record property to check. |
| System.Collections.Generic.ISet<T> | value | The value to use if the record property does not exist. |
Returns
| Type | Description |
|---|---|
| System.Collections.Generic.ISet<T> |
Type Parameters
| Name | Description |
|---|---|
| T | The type of the record property. |
ListAppend<T>(IList<T>, IList<T>)
The ListAppend<T>(IList<T>, IList<T>) method represents the list_append (list1, list2) DynamoDB operation.
Declaration
public static IList<T> ListAppend<T>(IList<T> list1, IList<T> list2)Parameters
| Type | Name | Description |
|---|---|---|
| System.Collections.Generic.IList<T> | list1 | The list to append to. |
| System.Collections.Generic.IList<T> | list2 | The list to append. |
Returns
| Type | Description |
|---|---|
| System.Collections.Generic.IList<T> |
Type Parameters
| Name | Description |
|---|---|
| T | The inner type for the generic list. |