ImplementationDirectory

contract ImplementationDirectory

is ImplementationProvider, ZOSLibOwnable

Implementation provider that stores contract implementations in a mapping.

Source: packages/lib/contracts/application/ImplementationDirectory.sol

Index

• Frozen
• ImplementationChanged
• freeze
• getImplementation
• setImplementation
• unsetImplementation
• whenNotFrozen

Reference

Events

• Frozen

  event Frozen()

  ---

  Emitted when the implementation directory is frozen.

• ImplementationChanged

  event ImplementationChanged(string contractName, address implementation)

  ---

  Emitted when the implementation of a contract is changed.

  Parameters:

  contractName - Name of the contract.

  implementation - Address of the added implementation.

Modifiers

• whenNotFrozen

  modifier whenNotFrozen()

  ---

  Modifier that allows functions to be called only before the contract is frozen.

Functions

• freeze

  function freeze() public

  ---

  Makes the directory irreversibly immutable. It can only be called once, by the owner.

  Modifiers:

  onlyOwner whenNotFrozen

• getImplementation

  function getImplementation(string contractName) public view returns (address)

  ---

  Returns the implementation address of a contract.

  Parameters:

  contractName - Name of the contract.

  Returns:

  Address of the implementation.

• setImplementation

  function setImplementation(string contractName, address implementation) public

  ---

  Sets the address of the implementation of a contract in the directory.

  Modifiers:

  onlyOwner whenNotFrozen

  Parameters:

  contractName - Name of the contract.

  implementation - Address of the implementation.

• unsetImplementation

  function unsetImplementation(string contractName) public

  ---

  Removes the address of a contract implementation from the directory.

  Modifiers:

  onlyOwner whenNotFrozen

  Parameters:

  contractName - Name of the contract.