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| 1 | +[sequelize-pool](../README.md) / FactoryOptions |
| 2 | + |
| 3 | +# Interface: FactoryOptions<T\> |
| 4 | + |
| 5 | +Factory options. Used for generating/destroying/validating resources & other configuration |
| 6 | + |
| 7 | +## Type parameters |
| 8 | + |
| 9 | +Name | |
| 10 | +:------ | |
| 11 | +`T` | |
| 12 | + |
| 13 | +## Table of contents |
| 14 | + |
| 15 | +### Properties |
| 16 | + |
| 17 | +- [acquireTimeoutMillis](factoryoptions.md#acquiretimeoutmillis) |
| 18 | +- [create](factoryoptions.md#create) |
| 19 | +- [destroy](factoryoptions.md#destroy) |
| 20 | +- [idleTimeoutMillis](factoryoptions.md#idletimeoutmillis) |
| 21 | +- [log](factoryoptions.md#log) |
| 22 | +- [max](factoryoptions.md#max) |
| 23 | +- [maxUses](factoryoptions.md#maxuses) |
| 24 | +- [min](factoryoptions.md#min) |
| 25 | +- [name](factoryoptions.md#name) |
| 26 | +- [reapIntervalMillis](factoryoptions.md#reapintervalmillis) |
| 27 | +- [validate](factoryoptions.md#validate) |
| 28 | + |
| 29 | +## Properties |
| 30 | + |
| 31 | +### acquireTimeoutMillis |
| 32 | + |
| 33 | +• `Optional` **acquireTimeoutMillis**: *number* |
| 34 | + |
| 35 | +Delay in milliseconds after which pending acquire request in the pool will be rejected. |
| 36 | +Pending acquires are acquire calls which are yet to receive an response from factory.create |
| 37 | + |
| 38 | +**`default`** 30000 |
| 39 | + |
| 40 | +___ |
| 41 | + |
| 42 | +### create |
| 43 | + |
| 44 | +• **create**: () => *Promise*<T\> |
| 45 | + |
| 46 | +Should create the item to be acquired |
| 47 | + |
| 48 | +#### Type declaration: |
| 49 | + |
| 50 | +▸ (): *Promise*<T\> |
| 51 | + |
| 52 | +**Returns:** *Promise*<T\> |
| 53 | + |
| 54 | +___ |
| 55 | + |
| 56 | +### destroy |
| 57 | + |
| 58 | +• **destroy**: (`resource`: T) => *void* \| *Promise*<void\> |
| 59 | + |
| 60 | +Should gently close any resources that the item is using. |
| 61 | +Called when resource is destroyed. |
| 62 | + |
| 63 | +#### Type declaration: |
| 64 | + |
| 65 | +▸ (`resource`: T): *void* \| *Promise*<void\> |
| 66 | + |
| 67 | +#### Parameters: |
| 68 | + |
| 69 | +Name | Type | |
| 70 | +:------ | :------ | |
| 71 | +`resource` | T | |
| 72 | + |
| 73 | +**Returns:** *void* \| *Promise*<void\> |
| 74 | + |
| 75 | +___ |
| 76 | + |
| 77 | +### idleTimeoutMillis |
| 78 | + |
| 79 | +• `Optional` **idleTimeoutMillis**: *number* |
| 80 | + |
| 81 | +Delay in milliseconds after which available resources in the pool will be destroyed. |
| 82 | +This does not affects pending acquire requests. |
| 83 | + |
| 84 | +**`default`** 30000 |
| 85 | + |
| 86 | +___ |
| 87 | + |
| 88 | +### log |
| 89 | + |
| 90 | +• `Optional` **log**: *boolean* \| FactoryLogger |
| 91 | + |
| 92 | +Whether the pool should log activity. If function is specified, |
| 93 | +that will be used instead. The function expects the arguments msg, loglevel |
| 94 | + |
| 95 | +**`default`** false |
| 96 | + |
| 97 | +___ |
| 98 | + |
| 99 | +### max |
| 100 | + |
| 101 | +• **max**: *number* |
| 102 | + |
| 103 | +Maximum number of items that can exist at the same time. |
| 104 | +Any further acquire requests will be pushed to the waiting list. |
| 105 | + |
| 106 | +___ |
| 107 | + |
| 108 | +### maxUses |
| 109 | + |
| 110 | +• `Optional` **maxUses**: *number* |
| 111 | + |
| 112 | +The number of times an item is to be used before it is destroyed |
| 113 | +no matter whether it is still healthy. A value of 0 indicates the |
| 114 | +item should be used indefinitely so long as it is healthy. |
| 115 | +This can help with "re-balancing" connections when pool members behind |
| 116 | +a load balancer are added but are not being adopted due to pools being |
| 117 | +full of pre-existing persistent connections. |
| 118 | + |
| 119 | +**`default`** Infinity |
| 120 | + |
| 121 | +___ |
| 122 | + |
| 123 | +### min |
| 124 | + |
| 125 | +• **min**: *number* |
| 126 | + |
| 127 | +Minimum number of items in pool (including in-use). |
| 128 | +When the pool is created, or a resource destroyed, this minimum will |
| 129 | +be checked. If the pool resource count is below the minimum, a new |
| 130 | +resource will be created and added to the pool.<Paste> |
| 131 | + |
| 132 | +___ |
| 133 | + |
| 134 | +### name |
| 135 | + |
| 136 | +• `Optional` **name**: *string* |
| 137 | + |
| 138 | +Name of the factory. Serves only logging purposes. |
| 139 | + |
| 140 | +___ |
| 141 | + |
| 142 | +### reapIntervalMillis |
| 143 | + |
| 144 | +• `Optional` **reapIntervalMillis**: *number* |
| 145 | + |
| 146 | +Clean up is scheduled in every `factory.reapIntervalMillis` milliseconds. |
| 147 | + |
| 148 | +**`default`** 1000 |
| 149 | + |
| 150 | +___ |
| 151 | + |
| 152 | +### validate |
| 153 | + |
| 154 | +• **validate**: (`resource`: T) => *boolean* |
| 155 | + |
| 156 | +Should return true if connection is still valid and false |
| 157 | +If it should be removed from pool. Called before item is |
| 158 | +acquired from pool. |
| 159 | + |
| 160 | +#### Type declaration: |
| 161 | + |
| 162 | +▸ (`resource`: T): *boolean* |
| 163 | + |
| 164 | +#### Parameters: |
| 165 | + |
| 166 | +Name | Type | |
| 167 | +:------ | :------ | |
| 168 | +`resource` | T | |
| 169 | + |
| 170 | +**Returns:** *boolean* |
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