<?php
/**
* Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the MIT License.  See License in the project root for license information.
* 
* ManagedDeviceCertificateState File
* PHP version 7
*
* @category  Library
* @package   Microsoft.Graph
* @copyright (c) Microsoft Corporation. All rights reserved.
* @license   https://opensource.org/licenses/MIT MIT License
* @link      https://graph.microsoft.com
*/
namespace Beta\Microsoft\Graph\Model;

/**
* ManagedDeviceCertificateState class
*
* @category  Model
* @package   Microsoft.Graph
* @copyright (c) Microsoft Corporation. All rights reserved.
* @license   https://opensource.org/licenses/MIT MIT License
* @link      https://graph.microsoft.com
*/
class ManagedDeviceCertificateState extends Entity
{
    /**
    * Gets the certificateEnhancedKeyUsage
    * Extended key usage
    *
    * @return string|null The certificateEnhancedKeyUsage
    */
    public function getCertificateEnhancedKeyUsage()
    {
        if (array_key_exists("certificateEnhancedKeyUsage", $this->_propDict)) {
            return $this->_propDict["certificateEnhancedKeyUsage"];
        } else {
            return null;
        }
    }

    /**
    * Sets the certificateEnhancedKeyUsage
    * Extended key usage
    *
    * @param string $val The certificateEnhancedKeyUsage
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateEnhancedKeyUsage($val)
    {
        $this->_propDict["certificateEnhancedKeyUsage"] = $val;
        return $this;
    }

    /**
    * Gets the certificateErrorCode
    * Error code
    *
    * @return int|null The certificateErrorCode
    */
    public function getCertificateErrorCode()
    {
        if (array_key_exists("certificateErrorCode", $this->_propDict)) {
            return $this->_propDict["certificateErrorCode"];
        } else {
            return null;
        }
    }

    /**
    * Sets the certificateErrorCode
    * Error code
    *
    * @param int $val The certificateErrorCode
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateErrorCode($val)
    {
        $this->_propDict["certificateErrorCode"] = intval($val);
        return $this;
    }

    /**
    * Gets the certificateExpirationDateTime
    * Certificate expiry date
    *
    * @return \DateTime|null The certificateExpirationDateTime
    */
    public function getCertificateExpirationDateTime()
    {
        if (array_key_exists("certificateExpirationDateTime", $this->_propDict)) {
            if (is_a($this->_propDict["certificateExpirationDateTime"], "\DateTime") || is_null($this->_propDict["certificateExpirationDateTime"])) {
                return $this->_propDict["certificateExpirationDateTime"];
            } else {
                $this->_propDict["certificateExpirationDateTime"] = new \DateTime($this->_propDict["certificateExpirationDateTime"]);
                return $this->_propDict["certificateExpirationDateTime"];
            }
        }
        return null;
    }

    /**
    * Sets the certificateExpirationDateTime
    * Certificate expiry date
    *
    * @param \DateTime $val The certificateExpirationDateTime
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateExpirationDateTime($val)
    {
        $this->_propDict["certificateExpirationDateTime"] = $val;
        return $this;
    }

    /**
    * Gets the certificateIssuanceDateTime
    * Issuance date
    *
    * @return \DateTime|null The certificateIssuanceDateTime
    */
    public function getCertificateIssuanceDateTime()
    {
        if (array_key_exists("certificateIssuanceDateTime", $this->_propDict)) {
            if (is_a($this->_propDict["certificateIssuanceDateTime"], "\DateTime") || is_null($this->_propDict["certificateIssuanceDateTime"])) {
                return $this->_propDict["certificateIssuanceDateTime"];
            } else {
                $this->_propDict["certificateIssuanceDateTime"] = new \DateTime($this->_propDict["certificateIssuanceDateTime"]);
                return $this->_propDict["certificateIssuanceDateTime"];
            }
        }
        return null;
    }

    /**
    * Sets the certificateIssuanceDateTime
    * Issuance date
    *
    * @param \DateTime $val The certificateIssuanceDateTime
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateIssuanceDateTime($val)
    {
        $this->_propDict["certificateIssuanceDateTime"] = $val;
        return $this;
    }

    /**
    * Gets the certificateIssuanceState
    * Issuance State. Possible values are: unknown, challengeIssued, challengeIssueFailed, requestCreationFailed, requestSubmitFailed, challengeValidationSucceeded, challengeValidationFailed, issueFailed, issuePending, issued, responseProcessingFailed, responsePending, enrollmentSucceeded, enrollmentNotNeeded, revoked, removedFromCollection, renewVerified, installFailed, installed, deleteFailed, deleted, renewalRequested, requested.
    *
    * @return CertificateIssuanceStates|null The certificateIssuanceState
    */
    public function getCertificateIssuanceState()
    {
        if (array_key_exists("certificateIssuanceState", $this->_propDict)) {
            if (is_a($this->_propDict["certificateIssuanceState"], "\Beta\Microsoft\Graph\Model\CertificateIssuanceStates") || is_null($this->_propDict["certificateIssuanceState"])) {
                return $this->_propDict["certificateIssuanceState"];
            } else {
                $this->_propDict["certificateIssuanceState"] = new CertificateIssuanceStates($this->_propDict["certificateIssuanceState"]);
                return $this->_propDict["certificateIssuanceState"];
            }
        }
        return null;
    }

    /**
    * Sets the certificateIssuanceState
    * Issuance State. Possible values are: unknown, challengeIssued, challengeIssueFailed, requestCreationFailed, requestSubmitFailed, challengeValidationSucceeded, challengeValidationFailed, issueFailed, issuePending, issued, responseProcessingFailed, responsePending, enrollmentSucceeded, enrollmentNotNeeded, revoked, removedFromCollection, renewVerified, installFailed, installed, deleteFailed, deleted, renewalRequested, requested.
    *
    * @param CertificateIssuanceStates $val The certificateIssuanceState
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateIssuanceState($val)
    {
        $this->_propDict["certificateIssuanceState"] = $val;
        return $this;
    }

    /**
    * Gets the certificateIssuer
    * Issuer
    *
    * @return string|null The certificateIssuer
    */
    public function getCertificateIssuer()
    {
        if (array_key_exists("certificateIssuer", $this->_propDict)) {
            return $this->_propDict["certificateIssuer"];
        } else {
            return null;
        }
    }

    /**
    * Sets the certificateIssuer
    * Issuer
    *
    * @param string $val The certificateIssuer
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateIssuer($val)
    {
        $this->_propDict["certificateIssuer"] = $val;
        return $this;
    }

    /**
    * Gets the certificateKeyLength
    * Key length
    *
    * @return int|null The certificateKeyLength
    */
    public function getCertificateKeyLength()
    {
        if (array_key_exists("certificateKeyLength", $this->_propDict)) {
            return $this->_propDict["certificateKeyLength"];
        } else {
            return null;
        }
    }

    /**
    * Sets the certificateKeyLength
    * Key length
    *
    * @param int $val The certificateKeyLength
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateKeyLength($val)
    {
        $this->_propDict["certificateKeyLength"] = intval($val);
        return $this;
    }

    /**
    * Gets the certificateKeyStorageProvider
    * Key Storage Provider. Possible values are: useTpmKspOtherwiseUseSoftwareKsp, useTpmKspOtherwiseFail, usePassportForWorkKspOtherwiseFail, useSoftwareKsp.
    *
    * @return KeyStorageProviderOption|null The certificateKeyStorageProvider
    */
    public function getCertificateKeyStorageProvider()
    {
        if (array_key_exists("certificateKeyStorageProvider", $this->_propDict)) {
            if (is_a($this->_propDict["certificateKeyStorageProvider"], "\Beta\Microsoft\Graph\Model\KeyStorageProviderOption") || is_null($this->_propDict["certificateKeyStorageProvider"])) {
                return $this->_propDict["certificateKeyStorageProvider"];
            } else {
                $this->_propDict["certificateKeyStorageProvider"] = new KeyStorageProviderOption($this->_propDict["certificateKeyStorageProvider"]);
                return $this->_propDict["certificateKeyStorageProvider"];
            }
        }
        return null;
    }

    /**
    * Sets the certificateKeyStorageProvider
    * Key Storage Provider. Possible values are: useTpmKspOtherwiseUseSoftwareKsp, useTpmKspOtherwiseFail, usePassportForWorkKspOtherwiseFail, useSoftwareKsp.
    *
    * @param KeyStorageProviderOption $val The certificateKeyStorageProvider
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateKeyStorageProvider($val)
    {
        $this->_propDict["certificateKeyStorageProvider"] = $val;
        return $this;
    }

    /**
    * Gets the certificateKeyUsage
    * Key usage. Possible values are: keyEncipherment, digitalSignature.
    *
    * @return KeyUsages|null The certificateKeyUsage
    */
    public function getCertificateKeyUsage()
    {
        if (array_key_exists("certificateKeyUsage", $this->_propDict)) {
            if (is_a($this->_propDict["certificateKeyUsage"], "\Beta\Microsoft\Graph\Model\KeyUsages") || is_null($this->_propDict["certificateKeyUsage"])) {
                return $this->_propDict["certificateKeyUsage"];
            } else {
                $this->_propDict["certificateKeyUsage"] = new KeyUsages($this->_propDict["certificateKeyUsage"]);
                return $this->_propDict["certificateKeyUsage"];
            }
        }
        return null;
    }

    /**
    * Sets the certificateKeyUsage
    * Key usage. Possible values are: keyEncipherment, digitalSignature.
    *
    * @param KeyUsages $val The certificateKeyUsage
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateKeyUsage($val)
    {
        $this->_propDict["certificateKeyUsage"] = $val;
        return $this;
    }

    /**
    * Gets the certificateLastIssuanceStateChangedDateTime
    * Last certificate issuance state change
    *
    * @return \DateTime|null The certificateLastIssuanceStateChangedDateTime
    */
    public function getCertificateLastIssuanceStateChangedDateTime()
    {
        if (array_key_exists("certificateLastIssuanceStateChangedDateTime", $this->_propDict)) {
            if (is_a($this->_propDict["certificateLastIssuanceStateChangedDateTime"], "\DateTime") || is_null($this->_propDict["certificateLastIssuanceStateChangedDateTime"])) {
                return $this->_propDict["certificateLastIssuanceStateChangedDateTime"];
            } else {
                $this->_propDict["certificateLastIssuanceStateChangedDateTime"] = new \DateTime($this->_propDict["certificateLastIssuanceStateChangedDateTime"]);
                return $this->_propDict["certificateLastIssuanceStateChangedDateTime"];
            }
        }
        return null;
    }

    /**
    * Sets the certificateLastIssuanceStateChangedDateTime
    * Last certificate issuance state change
    *
    * @param \DateTime $val The certificateLastIssuanceStateChangedDateTime
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateLastIssuanceStateChangedDateTime($val)
    {
        $this->_propDict["certificateLastIssuanceStateChangedDateTime"] = $val;
        return $this;
    }

    /**
    * Gets the certificateProfileDisplayName
    * Certificate profile display name
    *
    * @return string|null The certificateProfileDisplayName
    */
    public function getCertificateProfileDisplayName()
    {
        if (array_key_exists("certificateProfileDisplayName", $this->_propDict)) {
            return $this->_propDict["certificateProfileDisplayName"];
        } else {
            return null;
        }
    }

    /**
    * Sets the certificateProfileDisplayName
    * Certificate profile display name
    *
    * @param string $val The certificateProfileDisplayName
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateProfileDisplayName($val)
    {
        $this->_propDict["certificateProfileDisplayName"] = $val;
        return $this;
    }

    /**
    * Gets the certificateRevokeStatus
    * Revoke status. Possible values are: none, pending, issued, failed, revoked.
    *
    * @return CertificateRevocationStatus|null The certificateRevokeStatus
    */
    public function getCertificateRevokeStatus()
    {
        if (array_key_exists("certificateRevokeStatus", $this->_propDict)) {
            if (is_a($this->_propDict["certificateRevokeStatus"], "\Beta\Microsoft\Graph\Model\CertificateRevocationStatus") || is_null($this->_propDict["certificateRevokeStatus"])) {
                return $this->_propDict["certificateRevokeStatus"];
            } else {
                $this->_propDict["certificateRevokeStatus"] = new CertificateRevocationStatus($this->_propDict["certificateRevokeStatus"]);
                return $this->_propDict["certificateRevokeStatus"];
            }
        }
        return null;
    }

    /**
    * Sets the certificateRevokeStatus
    * Revoke status. Possible values are: none, pending, issued, failed, revoked.
    *
    * @param CertificateRevocationStatus $val The certificateRevokeStatus
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateRevokeStatus($val)
    {
        $this->_propDict["certificateRevokeStatus"] = $val;
        return $this;
    }

    /**
    * Gets the certificateSerialNumber
    * Serial number
    *
    * @return string|null The certificateSerialNumber
    */
    public function getCertificateSerialNumber()
    {
        if (array_key_exists("certificateSerialNumber", $this->_propDict)) {
            return $this->_propDict["certificateSerialNumber"];
        } else {
            return null;
        }
    }

    /**
    * Sets the certificateSerialNumber
    * Serial number
    *
    * @param string $val The certificateSerialNumber
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateSerialNumber($val)
    {
        $this->_propDict["certificateSerialNumber"] = $val;
        return $this;
    }

    /**
    * Gets the certificateSubjectAlternativeNameFormat
    * Subject alternative name format. Possible values are: none, emailAddress, userPrincipalName, customAzureADAttribute, domainNameService, universalResourceIdentifier.
    *
    * @return SubjectAlternativeNameType|null The certificateSubjectAlternativeNameFormat
    */
    public function getCertificateSubjectAlternativeNameFormat()
    {
        if (array_key_exists("certificateSubjectAlternativeNameFormat", $this->_propDict)) {
            if (is_a($this->_propDict["certificateSubjectAlternativeNameFormat"], "\Beta\Microsoft\Graph\Model\SubjectAlternativeNameType") || is_null($this->_propDict["certificateSubjectAlternativeNameFormat"])) {
                return $this->_propDict["certificateSubjectAlternativeNameFormat"];
            } else {
                $this->_propDict["certificateSubjectAlternativeNameFormat"] = new SubjectAlternativeNameType($this->_propDict["certificateSubjectAlternativeNameFormat"]);
                return $this->_propDict["certificateSubjectAlternativeNameFormat"];
            }
        }
        return null;
    }

    /**
    * Sets the certificateSubjectAlternativeNameFormat
    * Subject alternative name format. Possible values are: none, emailAddress, userPrincipalName, customAzureADAttribute, domainNameService, universalResourceIdentifier.
    *
    * @param SubjectAlternativeNameType $val The certificateSubjectAlternativeNameFormat
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateSubjectAlternativeNameFormat($val)
    {
        $this->_propDict["certificateSubjectAlternativeNameFormat"] = $val;
        return $this;
    }

    /**
    * Gets the certificateSubjectAlternativeNameFormatString
    * Subject alternative name format string for custom formats
    *
    * @return string|null The certificateSubjectAlternativeNameFormatString
    */
    public function getCertificateSubjectAlternativeNameFormatString()
    {
        if (array_key_exists("certificateSubjectAlternativeNameFormatString", $this->_propDict)) {
            return $this->_propDict["certificateSubjectAlternativeNameFormatString"];
        } else {
            return null;
        }
    }

    /**
    * Sets the certificateSubjectAlternativeNameFormatString
    * Subject alternative name format string for custom formats
    *
    * @param string $val The certificateSubjectAlternativeNameFormatString
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateSubjectAlternativeNameFormatString($val)
    {
        $this->_propDict["certificateSubjectAlternativeNameFormatString"] = $val;
        return $this;
    }

    /**
    * Gets the certificateSubjectNameFormat
    * Subject name format. Possible values are: commonName, commonNameIncludingEmail, commonNameAsEmail, custom, commonNameAsIMEI, commonNameAsSerialNumber, commonNameAsAadDeviceId, commonNameAsIntuneDeviceId, commonNameAsDurableDeviceId.
    *
    * @return SubjectNameFormat|null The certificateSubjectNameFormat
    */
    public function getCertificateSubjectNameFormat()
    {
        if (array_key_exists("certificateSubjectNameFormat", $this->_propDict)) {
            if (is_a($this->_propDict["certificateSubjectNameFormat"], "\Beta\Microsoft\Graph\Model\SubjectNameFormat") || is_null($this->_propDict["certificateSubjectNameFormat"])) {
                return $this->_propDict["certificateSubjectNameFormat"];
            } else {
                $this->_propDict["certificateSubjectNameFormat"] = new SubjectNameFormat($this->_propDict["certificateSubjectNameFormat"]);
                return $this->_propDict["certificateSubjectNameFormat"];
            }
        }
        return null;
    }

    /**
    * Sets the certificateSubjectNameFormat
    * Subject name format. Possible values are: commonName, commonNameIncludingEmail, commonNameAsEmail, custom, commonNameAsIMEI, commonNameAsSerialNumber, commonNameAsAadDeviceId, commonNameAsIntuneDeviceId, commonNameAsDurableDeviceId.
    *
    * @param SubjectNameFormat $val The certificateSubjectNameFormat
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateSubjectNameFormat($val)
    {
        $this->_propDict["certificateSubjectNameFormat"] = $val;
        return $this;
    }

    /**
    * Gets the certificateSubjectNameFormatString
    * Subject name format string for custom subject name formats
    *
    * @return string|null The certificateSubjectNameFormatString
    */
    public function getCertificateSubjectNameFormatString()
    {
        if (array_key_exists("certificateSubjectNameFormatString", $this->_propDict)) {
            return $this->_propDict["certificateSubjectNameFormatString"];
        } else {
            return null;
        }
    }

    /**
    * Sets the certificateSubjectNameFormatString
    * Subject name format string for custom subject name formats
    *
    * @param string $val The certificateSubjectNameFormatString
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateSubjectNameFormatString($val)
    {
        $this->_propDict["certificateSubjectNameFormatString"] = $val;
        return $this;
    }

    /**
    * Gets the certificateThumbprint
    * Thumbprint
    *
    * @return string|null The certificateThumbprint
    */
    public function getCertificateThumbprint()
    {
        if (array_key_exists("certificateThumbprint", $this->_propDict)) {
            return $this->_propDict["certificateThumbprint"];
        } else {
            return null;
        }
    }

    /**
    * Sets the certificateThumbprint
    * Thumbprint
    *
    * @param string $val The certificateThumbprint
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateThumbprint($val)
    {
        $this->_propDict["certificateThumbprint"] = $val;
        return $this;
    }

    /**
    * Gets the certificateValidityPeriod
    * Validity period
    *
    * @return int|null The certificateValidityPeriod
    */
    public function getCertificateValidityPeriod()
    {
        if (array_key_exists("certificateValidityPeriod", $this->_propDict)) {
            return $this->_propDict["certificateValidityPeriod"];
        } else {
            return null;
        }
    }

    /**
    * Sets the certificateValidityPeriod
    * Validity period
    *
    * @param int $val The certificateValidityPeriod
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateValidityPeriod($val)
    {
        $this->_propDict["certificateValidityPeriod"] = intval($val);
        return $this;
    }

    /**
    * Gets the certificateValidityPeriodUnits
    * Validity period units. Possible values are: days, months, years.
    *
    * @return CertificateValidityPeriodScale|null The certificateValidityPeriodUnits
    */
    public function getCertificateValidityPeriodUnits()
    {
        if (array_key_exists("certificateValidityPeriodUnits", $this->_propDict)) {
            if (is_a($this->_propDict["certificateValidityPeriodUnits"], "\Beta\Microsoft\Graph\Model\CertificateValidityPeriodScale") || is_null($this->_propDict["certificateValidityPeriodUnits"])) {
                return $this->_propDict["certificateValidityPeriodUnits"];
            } else {
                $this->_propDict["certificateValidityPeriodUnits"] = new CertificateValidityPeriodScale($this->_propDict["certificateValidityPeriodUnits"]);
                return $this->_propDict["certificateValidityPeriodUnits"];
            }
        }
        return null;
    }

    /**
    * Sets the certificateValidityPeriodUnits
    * Validity period units. Possible values are: days, months, years.
    *
    * @param CertificateValidityPeriodScale $val The certificateValidityPeriodUnits
    *
    * @return ManagedDeviceCertificateState
    */
    public function setCertificateValidityPeriodUnits($val)
    {
        $this->_propDict["certificateValidityPeriodUnits"] = $val;
        return $this;
    }

    /**
    * Gets the deviceDisplayName
    * Device display name
    *
    * @return string|null The deviceDisplayName
    */
    public function getDeviceDisplayName()
    {
        if (array_key_exists("deviceDisplayName", $this->_propDict)) {
            return $this->_propDict["deviceDisplayName"];
        } else {
            return null;
        }
    }

    /**
    * Sets the deviceDisplayName
    * Device display name
    *
    * @param string $val The deviceDisplayName
    *
    * @return ManagedDeviceCertificateState
    */
    public function setDeviceDisplayName($val)
    {
        $this->_propDict["deviceDisplayName"] = $val;
        return $this;
    }

    /**
    * Gets the devicePlatform
    * Device platform. Possible values are: android, androidForWork, iOS, macOS, windowsPhone81, windows81AndLater, windows10AndLater, androidWorkProfile, unknown, androidAOSP, androidMobileApplicationManagement, iOSMobileApplicationManagement, unknownFutureValue.
    *
    * @return DevicePlatformType|null The devicePlatform
    */
    public function getDevicePlatform()
    {
        if (array_key_exists("devicePlatform", $this->_propDict)) {
            if (is_a($this->_propDict["devicePlatform"], "\Beta\Microsoft\Graph\Model\DevicePlatformType") || is_null($this->_propDict["devicePlatform"])) {
                return $this->_propDict["devicePlatform"];
            } else {
                $this->_propDict["devicePlatform"] = new DevicePlatformType($this->_propDict["devicePlatform"]);
                return $this->_propDict["devicePlatform"];
            }
        }
        return null;
    }

    /**
    * Sets the devicePlatform
    * Device platform. Possible values are: android, androidForWork, iOS, macOS, windowsPhone81, windows81AndLater, windows10AndLater, androidWorkProfile, unknown, androidAOSP, androidMobileApplicationManagement, iOSMobileApplicationManagement, unknownFutureValue.
    *
    * @param DevicePlatformType $val The devicePlatform
    *
    * @return ManagedDeviceCertificateState
    */
    public function setDevicePlatform($val)
    {
        $this->_propDict["devicePlatform"] = $val;
        return $this;
    }

    /**
    * Gets the lastCertificateStateChangeDateTime
    * Last certificate issuance state change
    *
    * @return \DateTime|null The lastCertificateStateChangeDateTime
    */
    public function getLastCertificateStateChangeDateTime()
    {
        if (array_key_exists("lastCertificateStateChangeDateTime", $this->_propDict)) {
            if (is_a($this->_propDict["lastCertificateStateChangeDateTime"], "\DateTime") || is_null($this->_propDict["lastCertificateStateChangeDateTime"])) {
                return $this->_propDict["lastCertificateStateChangeDateTime"];
            } else {
                $this->_propDict["lastCertificateStateChangeDateTime"] = new \DateTime($this->_propDict["lastCertificateStateChangeDateTime"]);
                return $this->_propDict["lastCertificateStateChangeDateTime"];
            }
        }
        return null;
    }

    /**
    * Sets the lastCertificateStateChangeDateTime
    * Last certificate issuance state change
    *
    * @param \DateTime $val The lastCertificateStateChangeDateTime
    *
    * @return ManagedDeviceCertificateState
    */
    public function setLastCertificateStateChangeDateTime($val)
    {
        $this->_propDict["lastCertificateStateChangeDateTime"] = $val;
        return $this;
    }

    /**
    * Gets the userDisplayName
    * User display name
    *
    * @return string|null The userDisplayName
    */
    public function getUserDisplayName()
    {
        if (array_key_exists("userDisplayName", $this->_propDict)) {
            return $this->_propDict["userDisplayName"];
        } else {
            return null;
        }
    }

    /**
    * Sets the userDisplayName
    * User display name
    *
    * @param string $val The userDisplayName
    *
    * @return ManagedDeviceCertificateState
    */
    public function setUserDisplayName($val)
    {
        $this->_propDict["userDisplayName"] = $val;
        return $this;
    }

}