Class Java

The main java class. This should only be created once per process. Any other attempts to create a new jvm instance will fail.

Constructors

constructor

Accessors

classLoader loadedJars version wantedVersion

Methods

appendClasspath createInterfaceProxy delete importClass importClassAsync isInstanceOf setStdoutCallbacks

Constructors

constructor

  • new Java(libPath, version, opts, javaOptions, javaLibPath, nativeLibPath): Java

  • Create a new JVM instance.

    Parameters

    • libPath: undefined | null | string

      The path to jvm.(dll|so|dylib)

    • version: undefined | null | string

      The JVM version to use.

    • opts: undefined | null | string[]

      The JVM options to use.

    • javaOptions: undefined | null | JavaOptions
    • javaLibPath: string
    • nativeLibPath: string

    Returns Java

Accessors

classLoader

  • get classLoader(): object

  • Returns object

  • set classLoader(classLoader): void

  • Parameters

    • classLoader: object

    Returns void

loadedJars

  • get loadedJars(): string[]

  • Get the loaded jars.

    Returns string[]

version

  • get version(): string

  • Get the actual JVM version. This may not match the wanted JVM version.

    Returns string

wantedVersion

  • get wantedVersion(): string

  • Get the wanted JVM version. This may not match the actual JVM version.

    Returns string

Methods

appendClasspath

  • appendClasspath(classpath): void

  • Append a single or multiple jars to the classpath.

    Parameters

    • classpath: string | string[]

    Returns void

createInterfaceProxy

delete

  • delete(obj): void

  • Parameters

    • obj: object

    Returns void

importClass

  • importClass(className, config?): object

  • Import a java class Will import the class and parse all of its methods and fields. The imported class will be cached for future use.

    Parameters

    Returns object

importClassAsync

  • importClassAsync(className, config?): Promise<object>

  • Import a java class (async) Will return a promise that resolves to the class instance.

    If the underlying Java throwable should be contained in the error object, set asyncJavaExceptionObjects to true. This will cause the JavaScript stack trace to be lost. Setting this option in the global config will not affect this method, this option has to be set each time this method is called.

    Parameters

    Returns Promise<object>

    See

    importClass

isInstanceOf

  • isInstanceOf(thisObj, other): boolean

  • Check if this is instance of other

    Parameters

    • thisObj: object
    • other: string | object

    Returns boolean

setStdoutCallbacks

  • setStdoutCallbacks(stdoutCallback?, stderrCallback?): StdoutRedirect

  • Set the stdout/stderr callbacks

    Parameters

    • Optional stdoutCallback: null | ((err, data?) => void)
    • Optional stderrCallback: null | ((err, data?) => void)

    Returns StdoutRedirect

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