Class IndexedDB

  • public class IndexedDB
extends java.lang.Object
    Class created by Automatic Code-Generator.
    This class was built using the Chrome Remote Dev-Tools A.P.I., which is specified by two JSON-RPC Files. These files were obtained from the Chrome Dev Tools Protocol Git Hub Page, which has a "Tip of Tree" (the latest) API-Specification Page Here: JSON-RPC Protocol Specification.

    JSON-Viewable Google-API:
    These files may be viewed here: browser_protocol.json and js_protocol.json.
    These files were converted into this Java-Browser (CDT) Library; they are a Java-Alternative to the Node.js implementation.

    HTML-Viewable API:
    In addition to this Class-Library, these files were also converted to a simple HTML Page, which may be browsed here: Browser API Web-Page

    Node.js RDP-API Implementation:
    You may read about the Node.js Chrome Remote Interface on the Node.js Package Manager Web-Site: NPM
    [No Description Provided by Google]

    This class is intended to be used with a Headless Browser

    These methods have been tested, to some degree, using Google Chrome. In order to use this class you must start a web-browser instance and make a connection to the browser using a Remote Debugging Port. The initializations may be accomplished using class BRDPC (Browser Remote Debug Protocol Connection).

    Google-Chrome was used during the development process of the classes in this particular package. Note that, lately, it has been asserted Microsoft has switched to using the Chrome-Engine for its Microsoft Edge Browser Internal Code-Base. Therefore, there may limited support / functionality when running the methods in this class with Microsoft-Edge. There is the possibility these will work with Opera & Safari.

    Check whether the your Web-Browser will allow itself to be driven by the Web-Socket RDP-Port 9223.

    Foreign Function API:
    Every one of the methods that reside in this class are designed to do nothing more than:

    1. Accept Parameters from the User, and "Marshall Them" into a Valid JSON-Request
    2. Transmit the Marshalled Request-JSON to a Headless Web-Browser over a Web-Socket RDP Connection
    3. Receive BOTH that Method's Results AND any Browser Event-Firings from the Web-Socket
    4. Parse JSON Method-Results and Browser-Event Firings, and Subsequently Convert them to Standard Java-Types
    5. Report these Method-Results and Browser-Events to the User via an User-Registered Event-Listener or a Promise Object


    Java-HTML Difference:
    Unlike the bulk of the Java HTML JAR Library, there is very little native Java-Code, and very little testing that may be done on any of the classes & methods in this package. The code inside these classes does nothing more than marshall-and-unmarshall Java-Types into Json-Requests (and vice-versa). The Java-Script & Browser modules inside of a Google-Chrome instance are, theoretically, handling these requests, and returning their results (or events) over the Web-Socket Connection.

    It has been asserted (by Google Chrome Developers) that some of these methods are only "partially working" or "experimental".



    Stateless Class:
    This class neither contains any program-state, nor can it be instantiated. The @StaticFunctional Annotation may also be called 'The Spaghetti Report'. Static-Functional classes are, essentially, C-Styled Files, without any constructors or non-static member fields. It is a concept very similar to the Java-Bean's @Stateless Annotation.

    • 1 Constructor(s), 1 declared private, zero-argument constructor
    • 9 Method(s), 9 declared static
    • 5 Field(s), 5 declared static, 4 declared final
    • Fields excused from final modifier (with explanation):
      Field 'counter' is not final. Reason: CONFIGURATION


    • Method Detail

      • clearObjectStore

        🡇  ⇈  ⮫ 🗕  🗗  🗖 
        public static Script<java.lang.String,​JsonObject,​Ret0> clearObjectStore​
            (java.lang.String securityOrigin,
             java.lang.String databaseName,
             java.lang.String objectStoreName)
        Clears all entries from an object store.
        Parameters:
        securityOrigin - Security origin.
        databaseName - Database name.
        objectStoreName - Object store name.
        Returns:
        An instance of Script<String, JsonObject, Ret0>

        This Script instance must be executed before the browser receives the invocation-request.

        This Browser-Function does not have a return-value. You may choose to await the Promise<JsonObject, Ret0 > to ensure the Browser Function has run to completion.

      • deleteDatabase

        🡅  🡇  ⇈  ⮫ 🗕  🗗  🗖 
        public static Script<java.lang.String,​JsonObject,​Ret0> deleteDatabase​
            (java.lang.String securityOrigin,
             java.lang.String databaseName)
        Deletes a database.
        Parameters:
        securityOrigin - Security origin.
        databaseName - Database name.
        Returns:
        An instance of Script<String, JsonObject, Ret0>

        This Script instance must be executed before the browser receives the invocation-request.

        This Browser-Function does not have a return-value. You may choose to await the Promise<JsonObject, Ret0 > to ensure the Browser Function has run to completion.

      • deleteObjectStoreEntries

        🡅  🡇  ⇈  ⮫ 🗕  🗗  🗖 
        public static Script<java.lang.String,​JsonObject,​Ret0> deleteObjectStoreEntries​
            (java.lang.String securityOrigin,
             java.lang.String databaseName,
             java.lang.String objectStoreName,
             IndexedDB.KeyRange keyRange)
        Delete a range of entries from an object store
        Parameters:
        securityOrigin - -
        databaseName - -
        objectStoreName - -
        keyRange - Range of entry keys to delete
        Returns:
        An instance of Script<String, JsonObject, Ret0>

        This Script instance must be executed before the browser receives the invocation-request.

        This Browser-Function does not have a return-value. You may choose to await the Promise<JsonObject, Ret0 > to ensure the Browser Function has run to completion.

      • disable

        🡅  🡇  ⇈  ⮫ 🗕  🗗  🗖 
        public static Script<java.lang.String,​JsonObject,​Ret0> disable()
        Disables events from backend.
        Returns:
        An instance of Script<String, JsonObject, Ret0>

        This Script instance must be executed before the browser receives the invocation-request.

        This Browser-Function does not have a return-value. You may choose to await the Promise<JsonObject, Ret0 > to ensure the Browser Function has run to completion.

      • enable

        🡅  🡇  ⇈  ⮫ 🗕  🗗  🗖 
        public static Script<java.lang.String,​JsonObject,​Ret0> enable()
        Enables events from backend.
        Returns:
        An instance of Script<String, JsonObject, Ret0>

        This Script instance must be executed before the browser receives the invocation-request.

        This Browser-Function does not have a return-value. You may choose to await the Promise<JsonObject, Ret0 > to ensure the Browser Function has run to completion.

      • requestData

        🡅  🡇  ⇈  ⮫ 🗕  🗗  🗖 
        public static Script<java.lang.String,​JsonObject,​Ret2<IndexedDB.DataEntry[],​java.lang.Boolean>> requestData​
            (java.lang.String securityOrigin,
             java.lang.String databaseName,
             java.lang.String objectStoreName,
             java.lang.String indexName,
             int skipCount,
             int pageSize,
             IndexedDB.KeyRange keyRange)
        Requests data from object store or index.
        Parameters:
        securityOrigin - Security origin.
        databaseName - Database name.
        objectStoreName - Object store name.
        indexName - Index name, empty string for object store data requests.
        skipCount - Number of records to skip.
        pageSize - Number of records to fetch.
        keyRange - Key range.
        OPTIONAL
        Returns:
        An instance of Script<String, JsonObject, Ret2>

        This Script may be executed (using Script.exec()), and a Promise returned.

        When the Promise is awaited (using Promise.await()), the Ret2 will subsequently be returned from that call.

        The returned values are encapsulated in an instance of Ret2

        • Ret2.a: IndexedDB.DataEntry[] (objectStoreDataEntries)
          Array of object store data entries.

        • Ret2.b: Boolean (hasMore)
          If true, there are more entries to fetch in the given range.

      • getMetadata

        🡅  🡇  ⇈  ⮫ 🗕  🗗  🗖 
        public static Script<java.lang.String,​JsonObject,​Ret2<java.lang.Number,​java.lang.Number>> getMetadata​
            (java.lang.String securityOrigin,
             java.lang.String databaseName,
             java.lang.String objectStoreName)
        Gets metadata of an object store
        Parameters:
        securityOrigin - Security origin.
        databaseName - Database name.
        objectStoreName - Object store name.
        Returns:
        An instance of Script<String, JsonObject, Ret2>

        This Script may be executed (using Script.exec()), and a Promise returned.

        When the Promise is awaited (using Promise.await()), the Ret2 will subsequently be returned from that call.

        The returned values are encapsulated in an instance of Ret2

        • Ret2.a: Number (entriesCount)
          the entries count

        • Ret2.b: Number (keyGeneratorValue)
          the current value of key generator, to become the next inserted key into the object store. Valid if objectStore.autoIncrement is true.

      • requestDatabaseNames

        🡅  ⇈  ⮫ 🗕  🗗  🗖 
        public static Script<java.lang.String,​JsonObject,​java.lang.String[]> requestDatabaseNames​
            (java.lang.String securityOrigin)
        Requests database names for given security origin.
        Parameters:
        securityOrigin - Security origin.
        Returns:
        An instance of Script<String, JsonObject, String[]>

        This script may be executed, using Script.exec(), and afterwards, a Promise<JsonObject, String[]> will be returned.

        Finally, the Promise may be awaited, using Promise.await(), and the returned result of this Browser Function may may be retrieved.

        This Browser Function returns

        • String[] (databaseNames)
          Database names for origin.