software.amazon.awscdk.services.ecs

Interface CfnService.PlacementConstraintProperty

All Superinterfaces:

software.amazon.jsii.JsiiSerializable

All Known Implementing Classes:

CfnService.PlacementConstraintProperty.Jsii$Proxy

Enclosing class:

CfnService

@Stability(value=Stable)
public static interface CfnService.PlacementConstraintProperty
extends software.amazon.jsii.JsiiSerializable

The `PlacementConstraint` property specifies an object representing a constraint on task placement in the task definition.

For more information, see Task Placement Constraints in the Amazon Elastic Container Service Developer Guide .

Example:

 // The code below shows an example of how to instantiate this type.
 // The values are placeholders you should change.
 import software.amazon.awscdk.services.ecs.*;
 PlacementConstraintProperty placementConstraintProperty = PlacementConstraintProperty.builder()
         .type("type")
         // the properties below are optional
         .expression("expression")
         .build();
 

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	CfnService.PlacementConstraintProperty.Builder A builder for CfnService.PlacementConstraintProperty
static class	CfnService.PlacementConstraintProperty.Jsii$Proxy An implementation for CfnService.PlacementConstraintProperty

Method Summary

Modifier and Type	Method and Description
static CfnService.PlacementConstraintProperty.Builder	builder()
default String	getExpression() A cluster query language expression to apply to the constraint.
String	getType() The type of constraint.

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Method Detail

getType

@Stability(value=Stable)
 @NotNull
String getType()

The type of constraint.

Use distinctInstance to ensure that each task in a particular group is running on a different container instance. Use memberOf to restrict the selection to a group of valid candidates.

getExpression

@Stability(value=Stable)
 @Nullable
default String getExpression()

A cluster query language expression to apply to the constraint.

The expression can have a maximum length of 2000 characters. You can't specify an expression if the constraint type is distinctInstance . For more information, see Cluster query language in the Amazon Elastic Container Service Developer Guide .

builder

@Stability(value=Stable)
static CfnService.PlacementConstraintProperty.Builder builder()

Returns:

a CfnService.PlacementConstraintProperty.Builder of CfnService.PlacementConstraintProperty