VersionUtil (Jackson-core 2.1.1 API)
Date: 2012-11-11

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## com.fasterxml.jackson.core.util
Class VersionUtil

    java.lang.Object
      com.fasterxml.jackson.core.util.VersionUtil

Direct Known Subclasses:
  CoreVersion

    public class VersionUtil

extends Object

Functionality for supporting exposing of component `Version`s.

Note that this class can be used in two roles: first, as a static utility class for loading purposes, and second, as a singleton loader of per-module version information. In latter case one must sub-class to get proper per-module instance; and sub-class must reside in same Java package as matching "VERSION.txt" file.

Field Summary
`static String` | `VERSION_FILE`

Constructor Summary
`protected` | `VersionUtil()`

Method Summary
`static Version` | `mavenVersionFor(ClassLoader classLoader, String groupId, String artifactId)` Will attempt to load the maven version for the given groupId and artifactId.
`static Version` | `parseVersion(String versionStr)` Deprecated.
`static Version` | `parseVersion(String versionStr, String groupId, String artifactId)`
`protected static int` | `parseVersionPart(String partStr)`
`Version` | `version()`
`static Version` | `versionFor(Class<?> cls)` Helper method that will try to load version information for specified class.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### VERSION_FILE

    public static final String VERSION_FILE

See Also:
  Constant Field Values

Constructor Detail

### VersionUtil

    protected VersionUtil()

Method Detail

### version

    public Version version()

### versionFor

    public static Version versionFor(Class<?> cls)

  Helper method that will try to load version information for specified class. Implementation is simple: class loader that loaded specified class is asked to load resource with name "VERSION" from same location (package) as class itself had. If no version information is found, `Version.unknownVersion()` is returned.

### mavenVersionFor

    public static Version mavenVersionFor(ClassLoader classLoader,
                                          String groupId,
                                          String artifactId)

  Will attempt to load the maven version for the given groupId and artifactId. Maven puts a pom.properties file in META-INF/maven/groupId/artifactId, containing the groupId, artifactId and version of the library.

  Parameters:
    `classLoader` - the ClassLoader to load the pom.properties file from
    `groupId` - the groupId of the library
    `artifactId` - the artifactId of the library
  Returns:
    The version

### parseVersion

    @Deprecated
    public static Version parseVersion(String versionStr)

  Deprecated.

  Use variant that takes three arguments instead

### parseVersion

    public static Version parseVersion(String versionStr,
                                       String groupId,
                                       String artifactId)

### parseVersionPart

    protected static int parseVersionPart(String partStr)

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