> For the complete documentation index, see [llms.txt](https://coldbox-orm.ortusbooks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://coldbox-orm.ortusbooks.com/v5.x/base-orm-service/dynamic-finders-counters/method-signatures.md).

# Method Signatures

We have three types of dynamic finders and counters:

* `findBy` : Find ONE entity according to method signature, if more than one record is found a `NonUniqueResultException` is thrown
* `findAllBy` : Find ALL entities according to method signature
* `countBy` : Give you a count of entities according to method signature

Let's say you have the following entity:

```javascript
class persistent="true" entityName="User" table="users" extends="cborm.models.ActiveEntity" {

     property name="id" column="user_id" fieldType="id" generator="uuid";
     property name="lastName";
     property name="userName";
     property name="password";
     property name="lastLogin" ormtype="date";
}
```

Then we could do the following:

```javascript
user = getInstance( "User" ).findByLastName( "Majano" );

users = getInstance( "User" ).findAllByLastNameLike( "Ma%" );

users = getInstance( "User" ).findAllByLastLoginBetween( "01/01/2010", "01/01/2012" );

users = getInstance( "User" ).findAllByLastLoginGreaterThan( "01/01/2010" );

users = getInstance( "User" ).findAllByLastLoginGreaterThanAndLastNameLike( "01/01/2010", "jo%" );

count = getInstance( "User" ).countByLastLoginGreaterThan( "01/01/2010" );

count = getInstance( "User" ).countByLastLoginGreaterThanAndLastNameLike( "01/01/2010", "jo%" );
```

You can also use the virtual entity service instead of active entity.

```javascript
// Get a virtual entity service via DI, there are many ways to get a virtual entity service
// Look at virtual entity service docs for retrieval
property name="userService" inject="entityService:User";

user = userService.findByLastName( "Majano" );

users = userService.findAllByLastNameLike( "Ma%" );

users = userService.findAllByLastLoginBetween( "01/01/2010", "01/01/2012" );

users = userService.findAllByLastLoginGreaterThan( "01/01/2010" );

users = userService.findAllByLastLoginGreaterThanAndLastNameLike( "01/01/2010", "jo%" );

count = userService.countByLastLoginGreaterThan( "01/01/2010" );

count = userService.countByLastLoginGreaterThanAndLastNameLike( "01/01/2010", "jo%" );
```

If you just use a vanilla Base ORM Service, then the first argument must be the `entityName`:

```javascript
// Get the base ORM service via DI
// Look at base entity service docs for retrieval
property name="ormService" inject="entityService";

user = ormService.findByLastName( "User", "Majano" );
```


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