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Added in API level 24

Summary: Methods | [Expand All]

public interface CertPathChecker

java.security.cert.CertPathChecker

Known Indirect Subclasses

对每个的一个或多个检查 Certificate一个的 CertPath 。

通常会创建一个CertPathChecker实现来扩展认证路径验证算法。例如，实施可以检查并处理证书路径中每个证书的关键私有扩展。

Public methods
`abstract void`	`check(Certificate cert)` 使用其内部状态对指定证书执行检查。
`abstract void`	`init(boolean forward)` 初始化此 `CertPathChecker`的内部状态。
`abstract boolean`	`isForwardCheckingSupported()` 指示是否支持转发检查。

Added in API level 24

void check (Certificate cert)

使用其内部状态对指定证书执行检查。证书按照init方法指定的顺序init 。

Parameters
`cert`	`Certificate`: the `Certificate` to be checked

Throws
`CertPathValidatorException`	if the specified certificate does not pass the check

Added in API level 24

void init (boolean forward)

初始化此 CertPathChecker的内部状态。

forward标志指定证书将传递给 check方法（正向或反向）的顺序。

Parameters
`forward`	`boolean`: the order that certificates are presented to the `check` method. If `true`, certificates are presented from target to trust anchor (forward); if `false`, from trust anchor to target (reverse).

Throws
`CertPathValidatorException`	if this `CertPathChecker` is unable to check certificates in the specified order

Added in API level 24

boolean isForwardCheckingSupported ()

指示是否支持转发检查。前向检查是指在向前方向（从目标到信任锚点）向check方法颁发证书时， CertPathChecker执行检查的能力。

Returns
`boolean`	`true` if forward checking is supported, `false` otherwise