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The Azure Storage Java Blob library.
There is a newer version: 11.0.1
/*
 * Copyright Microsoft Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License 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 com.microsoft.azure.storage.blob;

import com.microsoft.azure.storage.blob.models.LeaseAccessConditions;
import com.microsoft.azure.storage.blob.models.ModifiedAccessConditions;

/**
 * This class contains values which will restrict the successful operation of a variety of requests to the conditions
 * present. These conditions are entirely optional. The entire object or any of its properties may be set to null when
 * passed to a method to indicate that those conditions are not desired. Please refer to the type of each field for more
 * information on those particular access conditions.
 */
public final class ContainerAccessConditions {

    /**
     * An object representing no access conditions.
     */
    public static final ContainerAccessConditions NONE = new ContainerAccessConditions();

    private ModifiedAccessConditions modifiedAccessConditions;

    private LeaseAccessConditions leaseAccessConditions;

    /**
     * Creates an instance which has fields set to non-null, empty values.
     */
    public ContainerAccessConditions() {
        this.modifiedAccessConditions = new ModifiedAccessConditions();
        this.leaseAccessConditions = new LeaseAccessConditions();
    }

    /**
     * Standard HTTP Access conditions related to the modification of data. ETag and LastModifiedTime are used to
     * construct conditions related to when the blob was changed relative to the given request. The request
     * will fail if the specified condition is not satisfied.
     */
    public ModifiedAccessConditions modifiedAccessConditions() {
        return modifiedAccessConditions;
    }

    /**
     * Standard HTTP Access conditions related to the modification of data. ETag and LastModifiedTime are used to
     * construct conditions related to when the blob was changed relative to the given request. The request
     * will fail if the specified condition is not satisfied.
     */
    public ContainerAccessConditions withModifiedAccessConditions(ModifiedAccessConditions modifiedAccessConditions) {
        this.modifiedAccessConditions = modifiedAccessConditions;
        return this;
    }

    /**
     * By setting lease access conditions, requests will fail if the provided lease does not match the active lease on
     * the blob.
     */
    public LeaseAccessConditions leaseAccessConditions() {
        return leaseAccessConditions;
    }

    /**
     * By setting lease access conditions, requests will fail if the provided lease does not match the active lease on
     * the blob.
     */
    public ContainerAccessConditions withLeaseAccessConditions(LeaseAccessConditions leaseID) {
        this.leaseAccessConditions = leaseID;
        return this;
    }
}