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The AWS SDK for Kotlin client for CloudWatch Events
There is a newer version: 1.3.76
// Code generated by smithy-kotlin-codegen. DO NOT EDIT!

package aws.sdk.kotlin.services.cloudwatchevents.model

import aws.smithy.kotlin.runtime.SdkDsl

/**
 * An object representing a constraint on task placement. To learn more, see [Task Placement Constraints](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-placement-constraints.html) in the Amazon Elastic Container Service Developer Guide.
 */
public class PlacementConstraint private constructor(builder: Builder) {
    /**
     * A cluster query language expression to apply to the constraint. You cannot specify an expression if the constraint type is `distinctInstance`. To learn more, see [Cluster Query Language](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/cluster-query-language.html) in the Amazon Elastic Container Service Developer Guide.
     */
    public val expression: kotlin.String? = builder.expression
    /**
     * 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.
     */
    public val type: aws.sdk.kotlin.services.cloudwatchevents.model.PlacementConstraintType? = builder.type

    public companion object {
        public operator fun invoke(block: Builder.() -> kotlin.Unit): aws.sdk.kotlin.services.cloudwatchevents.model.PlacementConstraint = Builder().apply(block).build()
    }

    override fun toString(): kotlin.String = buildString {
        append("PlacementConstraint(")
        append("expression=$expression,")
        append("type=$type")
        append(")")
    }

    override fun hashCode(): kotlin.Int {
        var result = expression?.hashCode() ?: 0
        result = 31 * result + (type?.hashCode() ?: 0)
        return result
    }

    override fun equals(other: kotlin.Any?): kotlin.Boolean {
        if (this === other) return true
        if (other == null || this::class != other::class) return false

        other as PlacementConstraint

        if (expression != other.expression) return false
        if (type != other.type) return false

        return true
    }

    public inline fun copy(block: Builder.() -> kotlin.Unit = {}): aws.sdk.kotlin.services.cloudwatchevents.model.PlacementConstraint = Builder(this).apply(block).build()

    @SdkDsl
    public class Builder {
        /**
         * A cluster query language expression to apply to the constraint. You cannot specify an expression if the constraint type is `distinctInstance`. To learn more, see [Cluster Query Language](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/cluster-query-language.html) in the Amazon Elastic Container Service Developer Guide.
         */
        public var expression: kotlin.String? = null
        /**
         * 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.
         */
        public var type: aws.sdk.kotlin.services.cloudwatchevents.model.PlacementConstraintType? = null

        @PublishedApi
        internal constructor()
        @PublishedApi
        internal constructor(x: aws.sdk.kotlin.services.cloudwatchevents.model.PlacementConstraint) : this() {
            this.expression = x.expression
            this.type = x.type
        }

        @PublishedApi
        internal fun build(): aws.sdk.kotlin.services.cloudwatchevents.model.PlacementConstraint = PlacementConstraint(this)

        internal fun correctErrors(): Builder {
            return this
        }
    }
}