Package com.install4j.api
Class ApplicationRegistry
java.lang.Object
com.install4j.api.ApplicationRegistry
The class provides information about applications installed with install4j.
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Nested Class Summary
Modifier and TypeClassDescriptionstatic interface
Provides information about an application installed by install4j. -
Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionstatic boolean
checkApplicationId
(File dir) Checks if the application can be safely installed into the given directory.static ApplicationRegistry.ApplicationInfo[]
Checks if the specified directory contains an application installed by install4j and retrieves information about the add-on installers in it.Checks if the specified directory contains an application installed by install4j and retrieves information about it.static ApplicationRegistry.ApplicationInfo[]
Retrieves information about an application installed by install4j via its application id.static boolean
isUpdateDirectory
(File dir) Checks if this application is already installed in the given directory.
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Constructor Details
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ApplicationRegistry
public ApplicationRegistry()
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Method Details
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checkApplicationId
Checks if the application can be safely installed into the given directory. If this is an add-on installer, it returns true if the directory contains the target app.- Parameters:
dir
- the directory to be checked- Returns:
- true if safe
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isUpdateDirectory
Checks if this application is already installed in the given directory. This is the case if the application ID of the current installer is equal to the application ID of the already installed application.Note that if you pass the installation directory of the current installer to this method, the return value will change to
true
after the "Install Files" action has run. To check if the current installer will perform an update installation, useInstallerContext.isUpdateInstallation()
which returns a consistent value over the entire lifetime of the installer.- Parameters:
dir
- the directory to be checked- Returns:
- true if an update is detected
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getApplicationInfoById
Retrieves information about an application installed by install4j via its application id.- Parameters:
id
- the application id- Returns:
- an array of ApplicationInfo objects containing all installations of the application with this id. The newest installation is the first element. Empty array if there are no installations.
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getApplicationInfoByDir
Checks if the specified directory contains an application installed by install4j and retrieves information about it.- Parameters:
dir
- the base directory to check- Returns:
- an ApplicationInfo object if the directory contains an application installed with install4j,
null
otherwise.
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getAddOnApplicationInfoByDir
Checks if the specified directory contains an application installed by install4j and retrieves information about the add-on installers in it.- Parameters:
dir
- the base directory to check- Returns:
- an array of ApplicationInfo objects if the directory contains an application installed with install4j,
null
otherwise. The array will be empty if there are no add-ons installed.
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