software.amazon.awssdk.services.waf.endpoints.internal.IsSet Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of waf Show documentation

The AWS Java SDK for AWS WAF Service module holds the client classes that are used for communicating with AWS WAF Service

There is a newer version: 2.29.15

Show newest version

/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with
 * the License. A copy of the License is located at
 * 
 * http://aws.amazon.com/apache2.0
 * 
 * or in the "license" file accompanying this file. This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions
 * and limitations under the License.
 */

package software.amazon.awssdk.services.waf.endpoints.internal;

import software.amazon.awssdk.annotations.SdkInternalApi;

@SdkInternalApi
public class IsSet extends SingleArgFn {
    public static final String ID = "isSet";

    public IsSet(FnNode fnNode) {
        super(fnNode);
    }

    @Override
    public  T acceptFnVisitor(FnVisitor visitor) {
        return visitor.visitIsSet(this);
    }

    public static IsSet ofExpr(Expr expr) {
        return new IsSet(FnNode.ofExprs(ID, expr));
    }

    @Override
    protected Value evalArg(Value arg) {
        return Value.fromBool(!arg.isNone());
    }

}