com.vaadin.flow.server.frontend.NodeUpdater API 14.12.1 | Vaadin

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com.vaadin.flow.server.frontend.

java.lang.Object
- com.vaadin.flow.server.frontend.NodeUpdater

All Implemented Interfaces:

FallibleCommand

Direct Known Subclasses:

TaskCreatePackageJson, TaskUpdateImports, TaskUpdatePackages
```
public abstract class NodeUpdater
extends Object
implements FallibleCommand
```
Base abstract class for frontend updaters that needs to be run when in dev-mode or from the flow maven plugin.
For internal use only. May be renamed or removed in a future release.

Since:

2.0

Field Summary

Fields
Modifier and Type	Field and Description
`protected FrontendDependenciesScanner`	`frontDeps` The `FrontendDependencies` object representing the application dependencies.
`protected File`	`generatedFolder` Base directory for flow generated files.
`protected File`	`nodeModulesFolder` The path to the `FrontendUtils.NODE_MODULES` directory.
`protected File`	`npmFolder` Base directory for `Constants.PACKAGE_JSON`, `FrontendUtils.WEBPACK_CONFIG`, `FrontendUtils.NODE_MODULES`.
`protected static String`	`POLYMER_VERSION`

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`NodeUpdater(ClassFinder finder, FrontendDependenciesScanner frontendDependencies, File npmFolder, File generatedPath)` Constructor.

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
- Methods inherited from interface com.vaadin.flow.server.frontend.FallibleCommand
  execute

- Field Detail
  - POLYMER_VERSION
```
protected static final String POLYMER_VERSION
```
    See Also:
    
    Constant Field Values
  - npmFolder
```
protected final File npmFolder
```
    Base directory for Constants.PACKAGE_JSON, FrontendUtils.WEBPACK_CONFIG, FrontendUtils.NODE_MODULES.
  - nodeModulesFolder
```
protected final File nodeModulesFolder
```
    The path to the FrontendUtils.NODE_MODULES directory.
  - generatedFolder
```
protected final File generatedFolder
```
    Base directory for flow generated files.
  - frontDeps
```
protected final FrontendDependenciesScanner frontDeps
```
    The FrontendDependencies object representing the application dependencies.
- Constructor Detail
  - NodeUpdater
```
protected NodeUpdater(ClassFinder finder,
                      FrontendDependenciesScanner frontendDependencies,
                      File npmFolder,
                      File generatedPath)
```
    Constructor.
    
    Parameters:
    
    finder - a reusable class finder
    
    frontendDependencies - a reusable frontend dependencies
    
    npmFolder - folder with the `package.json` file
    
    generatedPath - folder where flow generated files will be placed.