class Container implements ResettableContainerInterface

Container is a dependency injection container.

It gives access to object instances (services).

Services and parameters are simple key/pair stores.

Parameter keys are case insensitive.

The container can have three possible behaviors when a service does not exist:

  • EXCEPTIONONINVALID_REFERENCE: Throws an exception (the default)
  • NULLONINVALID_REFERENCE: Returns null
  • IGNOREONINVALID_REFERENCE: Ignores the wrapping command asking for the reference (for instance, ignore a setter if the service does not exist)

Methods

__construct(ParameterBagInterface $parameterBag = null)

No description

compile()

Compiles the container.

bool
isCompiled()

Returns true if the container is compiled.

getParameterBag()

Gets the service container parameter bag.

mixed
getParameter(string $name)

Gets a parameter.

bool
hasParameter(string $name)

Checks if a parameter exists.

setParameter(string $name, mixed $value)

Sets a parameter.

set(string $id, object $service)

Sets a service.

bool
has(string $id)

Returns true if the given service is defined.

object
get(string $id, int $invalidBehavior = self::EXCEPTION_ON_INVALID_REFERENCE)

Gets a service.

bool
initialized(string $id)

Returns true if the given service has actually been initialized.

reset()

Resets shared services from the container.

array
getServiceIds()

Gets all service ids.

static string
camelize(string $id)

Camelizes a string.

static string
underscore(string $id)

A string to underscore.

Details

at line line 59
__construct(ParameterBagInterface $parameterBag = null)

Parameters

ParameterBagInterface $parameterBag A ParameterBagInterface instance

at line line 72
compile()

Compiles the container.

This method does two things:

  • Parameter values are resolved;
  • The parameter bag is frozen.

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bool isCompiled()

Returns true if the container is compiled.

Return Value

bool

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ParameterBagInterface getParameterBag()

Gets the service container parameter bag.

Return Value

ParameterBagInterface A ParameterBagInterface instance

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mixed getParameter(string $name)

Gets a parameter.

Parameters

string $name The parameter name

Return Value

mixed The parameter value

Exceptions

InvalidArgumentException if the parameter is not defined

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bool hasParameter(string $name)

Checks if a parameter exists.

Parameters

string $name The parameter name

Return Value

bool The presence of parameter in container

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setParameter(string $name, mixed $value)

Sets a parameter.

Parameters

string $name The parameter name
mixed $value The parameter value

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set(string $id, object $service)

Sets a service.

Setting a service to null resets the service: has() returns false and get() behaves in the same way as if the service was never created.

Parameters

string $id The service identifier
object $service The service instance

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bool has(string $id)

Returns true if the given service is defined.

Parameters

string $id The service identifier

Return Value

bool true if the service is defined, false otherwise

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object get(string $id, int $invalidBehavior = self::EXCEPTION_ON_INVALID_REFERENCE)

Gets a service.

If a service is defined both through a set() method and with a get{$id}Service() method, the former has always precedence.

Parameters

string $id The service identifier
int $invalidBehavior The behavior when the service does not exist

Return Value

object The associated service

Exceptions

ServiceCircularReferenceException When a circular reference is detected
ServiceNotFoundException When the service is not defined
Exception if an exception has been thrown when the service has been resolved

See also

Reference

at line line 275
bool initialized(string $id)

Returns true if the given service has actually been initialized.

Parameters

string $id

Return Value

bool true if the service has been initialized, false otherwise

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reset()

Resets shared services from the container.

The container is not intended to be used again after being reset in a normal workflow. This method is meant as a way to release references for ref-counting. A subsequent call to ContainerInterface::get will recreate a new instance of the shared service.

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array getServiceIds()

Gets all service ids.

Return Value

array An array of all defined service ids

at line line 313
static string camelize(string $id)

Camelizes a string.

Parameters

string $id A string to camelize

Return Value

string The camelized string

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static string underscore(string $id)

A string to underscore.

Parameters

string $id The string to underscore

Return Value

string The underscored string