interface ContextInterface in Drupal 8

Provides data and definitions for plugins during runtime and administration.

Plugin contexts are satisfied by ContextInterface implementing objects. These objects always contain a definition of what data they will provide during runtime. During run time, ContextInterface implementing objects must also provide the corresponding data value.

Hierarchy

• interface \Drupal\Component\Plugin\Context\ContextInterface

See also

\Drupal\Component\Plugin\Context\ContextDefinitionInterface

9 files declare their use of ContextInterface

BlockComponentRenderArrayTest.php in core/modules/layout_builder/tests/src/Unit/BlockComponentRenderArrayTest.php

ConditionPluginCollection.php in core/lib/Drupal/Core/Condition/ConditionPluginCollection.php

ContextAwarePluginBase.php in core/lib/Drupal/Core/Plugin/ContextAwarePluginBase.php

ContextAwarePluginBase.php in core/lib/Drupal/Component/Plugin/ContextAwarePluginBase.php

ContextAwarePluginBaseTest.php in core/tests/Drupal/KernelTests/Core/Plugin/Context/ContextAwarePluginBaseTest.php

... See full list

File

core/lib/Drupal/Component/Plugin/Context/ContextInterface.php, line 15

Namespace

Drupal\Component\Plugin\Context

interface ContextInterface {

  /**
   * Gets the context value.
   *
   * @return mixed
   *   The currently set context value, or NULL if it is not set.
   */
  public function getContextValue();

  /**
   * Returns whether the context has a value.
   *
   * @return bool
   *   TRUE if the context has a value, FALSE otherwise.
   */
  public function hasContextValue();

  /**
   * Gets the provided definition that the context must conform to.
   *
   * @return \Drupal\Component\Plugin\Context\ContextDefinitionInterface
   *   The defining characteristic representation of the context.
   */
  public function getContextDefinition();

  /**
   * Gets a list of validation constraints.
   *
   * @return array
   *   Array of constraints, each being an instance of
   *   \Symfony\Component\Validator\Constraint.
   */
  public function getConstraints();

  /**
   * Validates the set context value.
   *
   * @return \Symfony\Component\Validator\ConstraintViolationListInterface
   *   A list of constraint violations. If the list is empty, validation
   *   succeeded.
   */
  public function validate();

}

Members

Name	Modifiers	Type	Description	Overrides
ContextInterface::getConstraints	public	function	Gets a list of validation constraints.	1
ContextInterface::getContextDefinition	public	function	Gets the provided definition that the context must conform to.	2
ContextInterface::getContextValue	public	function	Gets the context value.	1
ContextInterface::hasContextValue	public	function	Returns whether the context has a value.	1
ContextInterface::validate	public	function	Validates the set context value.	1