java.security.cert

## Class CollectionCertStoreParameters

- java.lang.Object
- - java.security.cert.CollectionCertStoreParameters

- All Implemented Interfaces:
    Cloneable, CertStoreParameters

      public class CollectionCertStoreParameters
      extends Object
      implements CertStoreParameters

  Parameters used as input for the Collection `CertStore` algorithm.

  This class is used to provide necessary configuration parameters to implementations of the Collection `CertStore` algorithm. The only parameter included in this class is the `Collection` from which the `CertStore` will retrieve certificates and CRLs.

  Concurrent Access

  Unless otherwise specified, the methods defined in this class are not thread-safe. Multiple threads that need to access a single object concurrently should synchronize amongst themselves and provide the necessary locking. Multiple threads each manipulating separate objects need not synchronize.

  Since:
    1.4
  See Also:
    `Collection`, `CertStore`

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `CollectionCertStoreParameters()` Creates an instance of `CollectionCertStoreParameters` with the default parameter values (an empty and immutable `Collection`).
    `CollectionCertStoreParameters(Collection<?> collection)` Creates an instance of `CollectionCertStoreParameters` which will allow certificates and CRLs to be retrieved from the specified `Collection`.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `Object` | `clone()` Returns a copy of this object.
    `Collection<?>` | `getCollection()` Returns the `Collection` from which `Certificate`s and `CRL`s are retrieved.
    `String` | `toString()` Returns a formatted string describing the parameters.

    - ### Methods inherited from class java.lang.Object

      `equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### CollectionCertStoreParameters

          public CollectionCertStoreParameters(Collection<?> collection)

      Creates an instance of `CollectionCertStoreParameters` which will allow certificates and CRLs to be retrieved from the specified `Collection`. If the specified `Collection` contains an object that is not a `Certificate` or `CRL`, that object will be ignored by the Collection `CertStore`.

      The `Collection` is not copied. Instead, a reference is used. This allows the caller to subsequently add or remove `Certificates` or `CRL`s from the `Collection`, thus changing the set of `Certificates` or `CRL`s available to the Collection `CertStore`. The Collection `CertStore` will not modify the contents of the `Collection`.

      If the `Collection` will be modified by one thread while another thread is calling a method of a Collection `CertStore` that has been initialized with this `Collection`, the `Collection` must have fail-fast iterators.

      Parameters:
        `collection` - a `Collection` of `Certificate`s and `CRL`s
      Throws:
        `NullPointerException` - if `collection` is `null`

    - #### CollectionCertStoreParameters

          public CollectionCertStoreParameters()

      Creates an instance of `CollectionCertStoreParameters` with the default parameter values (an empty and immutable `Collection`).

  - ### Method Detail

    - #### getCollection

          public Collection<?> getCollection()

      Returns the `Collection` from which `Certificate`s and `CRL`s are retrieved. This is not a copy of the `Collection`, it is a reference. This allows the caller to subsequently add or remove `Certificates` or `CRL`s from the `Collection`.
      Returns:
        the `Collection` (never null)

    - #### clone

          public Object clone()

      Returns a copy of this object. Note that only a reference to the `Collection` is copied, and not the contents.
      Specified by:
        `clone` in interface `CertStoreParameters`
      Overrides:
        `clone` in class `Object`
      Returns:
        the copy
      See Also:
        `Cloneable`

    - #### toString

          public String toString()

      Returns a formatted string describing the parameters.
      Overrides:
        `toString` in class `Object`
      Returns:
        a formatted string describing the parameters

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