1 | <?php declare(strict_types=1); |
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17 | class Loadbalancer extends OperatorResource implements Creatable, Retrievable, Updateable, Deletable |
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18 | { |
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19 | /** |
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20 | * @var string |
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21 | */ |
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22 | public $name; |
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23 | |||
24 | /** |
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25 | * @var string |
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26 | */ |
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27 | public $description; |
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28 | |||
29 | /** |
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30 | * @var boolean |
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31 | */ |
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32 | public $adminStateUp; |
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33 | |||
34 | /** |
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35 | * @var string |
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36 | */ |
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37 | public $tenantId; |
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38 | |||
39 | /** |
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40 | * @var []LoadbalancerListener |
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41 | */ |
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42 | public $listeners; |
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43 | |||
44 | /** |
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45 | * @var string |
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46 | */ |
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47 | public $vipAddress; |
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48 | |||
49 | /** |
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50 | * @var string |
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51 | */ |
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52 | public $vipSubnetId; |
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53 | |||
54 | /** |
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55 | * @var string |
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56 | */ |
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57 | public $id; |
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58 | |||
59 | /** |
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60 | * @var string |
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61 | */ |
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62 | public $operatingStatus; |
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63 | |||
64 | /** |
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65 | * @var string |
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66 | */ |
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67 | public $provisioningStatus; |
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68 | |||
69 | protected $resourcesKey = 'loadbalancers'; |
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70 | protected $resourceKey = 'loadbalancer'; |
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71 | |||
72 | protected $aliases = [ |
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73 | 'tenant_id' => 'tenantId', |
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74 | 'admin_state_up' => 'adminStateUp', |
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75 | 'vip_address' => 'vipAddress', |
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76 | 'vip_subnet_id' => 'vipSubnetId', |
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77 | 'operating_status' => 'operatingStatus', |
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78 | 'provisioning_status' => 'provisioningStatus' |
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79 | ]; |
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80 | |||
81 | /** |
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82 | * {@inheritDoc} |
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83 | */ |
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84 | public function create(array $userOptions): Creatable |
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89 | |||
90 | /** |
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91 | * {@inheritDoc} |
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92 | */ |
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93 | public function retrieve() |
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98 | |||
99 | /** |
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100 | * {@inheritDoc} |
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101 | */ |
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102 | public function update() |
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107 | |||
108 | /** |
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109 | * {@inheritDoc} |
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110 | */ |
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111 | public function delete() |
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115 | |||
116 | /** |
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117 | * Add a listener to this load balancer |
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118 | * |
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119 | * @param array $userOptions |
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120 | * @return LoadbalancerListener |
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121 | */ |
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122 | public function addListener(array $userOptions = []): LoadbalancerListener |
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127 | |||
128 | /** |
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129 | * Get stats for this loadbalancer |
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130 | * |
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131 | * @return LoadbalancerStat |
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132 | */ |
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133 | public function getStats(): LoadbalancerStat |
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139 | |||
140 | /** |
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141 | * Get the status tree for this loadbalancer |
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142 | * |
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143 | * @return LoadbalancerStatus |
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144 | */ |
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145 | public function getStatuses(): LoadbalancerStatus |
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151 | } |
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152 |
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: