CertPathBuilderSpi

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概述

软件包

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Java^TM 2 Platform
Standard Ed. 5.0

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摘要：嵌套 | 字段 | 构造方法 | 方法

详细信息：字段 | 构造方法 | 方法

java.security.cert
类 CertPathBuilderSpi

java.lang.Object
  java.security.cert.CertPathBuilderSpi

public abstract class CertPathBuilderSpi
extends Object
extends Object

CertPathBuilder 类的服务提供程序接口 (SPI)。所有 CertPathBuilder 实现必须包括扩展此类 (CertPathBuilderSpi) 并实现其所有方法的类（SPI 类）。通常，只应通过 CertPathBuilder 类来访问此类的实例。有关细节，请参阅《Java Cryptography Architecture》。

并发访问

对于多个线程的并发访问，无需保护此类的实例。需要并发访问单个 CertPathBuilderSpi 实例的多个线程应该在它们之间实现同步并在调用包装的 CertPathBuilder 对象前提供所需的锁定。

但是 CertPathBuilderSpi 的实现仍可能遇到并发问题，因为每个线程都操作一个不同 CertPathBuilderSpi 实例的多个线程无需实现同步。

从以下版本开始：: 1.4

构造方法摘要
`CertPathBuilderSpi()` 默认的构造方法。

方法摘要
`abstract CertPathBuilderResult`	`engineBuild(CertPathParameters params)` 尝试使用指定的算法参数集构建一个证书路径。

从类 java.lang.Object 继承的方法
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

构造方法详细信息

CertPathBuilderSpi

public CertPathBuilderSpi()

默认的构造方法。

方法详细信息

engineBuild

public abstract CertPathBuilderResult engineBuild(CertPathParameters params)
                                           throws CertPathBuilderException,
                                                  InvalidAlgorithmParameterException

尝试使用指定的算法参数集构建一个证书路径。

参数：: params - 算法参数
返回：: 构建算法的结果
抛出：: CertPathBuilderException - 如果该生成器无法构造一个满足指定参数要求的证书路径; InvalidAlgorithmParameterException - 如果指定的参数不适合此 CertPathBuilder

概述