Package software.amazon.awssdk.services.ecs.model

Class PlacementConstraint

java.lang.Object

software.amazon.awssdk.services.ecs.model.PlacementConstraint

All Implemented Interfaces:

Serializable, SdkPojo, ToCopyableBuilder<PlacementConstraint.Builder,PlacementConstraint>

@Generated("software.amazon.awssdk:codegen")
public final class PlacementConstraint
extends Object
implements SdkPojo, Serializable, ToCopyableBuilder<PlacementConstraint.Builder,PlacementConstraint>

An object representing a constraint on task placement. For more information, see Task placement constraints in the Amazon Elastic Container Service Developer Guide.

If you're using the Fargate launch type, task placement constraints aren't supported.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	PlacementConstraint.Builder

Method Summary

Modifier and Type	Method	Description
static PlacementConstraint.Builder	builder()
boolean	equals(Object obj)
boolean	equalsBySdkFields(Object obj)
String	expression()	A cluster query language expression to apply to the constraint.
<T> Optional<T>	getValueForField(String fieldName, Class<T> clazz)
int	hashCode()
List<SdkField<?>>	sdkFields()
static Class<? extends PlacementConstraint.Builder>	serializableBuilderClass()
PlacementConstraint.Builder	toBuilder()
String	toString()	Returns a string representation of this object.
PlacementConstraintType	type()	The type of constraint.
String	typeAsString()	The type of constraint.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface software.amazon.awssdk.utils.builder.ToCopyableBuilder

copy

Method Detail

type

public final PlacementConstraintType type()

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.

If the service returns an enum value that is not available in the current SDK version, type will return PlacementConstraintType.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from typeAsString().

Returns:

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.

See Also:

PlacementConstraintType

typeAsString

public final String typeAsString()

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.

If the service returns an enum value that is not available in the current SDK version, type will return PlacementConstraintType.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from typeAsString().

Returns:

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.

See Also:

PlacementConstraintType

expression

public final String expression()

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.

Returns:

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.

toBuilder

public PlacementConstraint.Builder toBuilder()

Specified by:

toBuilder in interface ToCopyableBuilder<PlacementConstraint.Builder,PlacementConstraint>

builder

public static PlacementConstraint.Builder builder()

serializableBuilderClass

public static Class<? extends PlacementConstraint.Builder> serializableBuilderClass()

hashCode

public final int hashCode()

Overrides:

hashCode in class Object

equals

public final boolean equals(Object obj)

Overrides:

equals in class Object

equalsBySdkFields

public final boolean equalsBySdkFields(Object obj)

Specified by:

equalsBySdkFields in interface SdkPojo

toString

public final String toString()

Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value.

Overrides:

toString in class Object

getValueForField

public final <T> Optional<T> getValueForField(String fieldName,
                                              Class<T> clazz)

sdkFields

public final List<SdkField<?>> sdkFields()

Specified by:

sdkFields in interface SdkPojo