Package com.intellij.util.gist

Interface PsiFileGist<Data>

public interface PsiFileGist<Data>

Calculates some data based on PsiFile content, persists it between IDE restarts, and updates it when the content is changed. The data is calculated lazily, when needed.

Obtained using GistManager.newPsiFileGist(java.lang.String, int, com.intellij.util.io.DataExternalizer<Data>, com.intellij.util.NullableFunction<com.intellij.psi.PsiFile, Data>).

The difference to VirtualFileGist is that PSI content is used here. So if an uncommitted document is saved onto disk, this class will use the last committed content of the PSI file, while VirtualFileGist will use the saved virtual file content.

Please note that VirtualFileGist is used inside, so using PsiFileGist has the same performance implications (see VirtualFileGist documentation).

Method Summary

Modifier and Type	Method and Description
Data	getFileData(PsiFile file) Calculate or get the cached data by the current PSI content.

Method Detail

getFileData

Data getFileData(PsiFile file)

Calculate or get the cached data by the current PSI content.