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changes.mady.by.user Daniel Lipp

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New Version 5

changes.mady.by.user Daniel Lipp

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ContentApps + containers

tree

  • is not using paging - reads all child nodes when expanding

list
  • queries for all elements to get total size - then queries the content using a paging mechanism
thumbnail
  • doesn't extend AbstractJcrContainer - hence it cannot , doesn't use its paging mechanism
  • has its own lazy loading mechanism: loads when required but then keeps all read items (images) until we switch to another view

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  • starting contacts app consumes 20-30 MByte of additional memory
    • could not measure a diff between querying "select *..." of "select [jcr:uuid]..." in AbstractJcrContainer#updateSize()
  • list view temporarily consumes about 100 MByte but this goes aways on GC - this is true even when scrolling around
  • thumbnail view easily consumes about 200 MByte when scrolling in it - this memory stays after GC and is only freed when switching to another viewsystem gets pretty slow bug most memory is freed using GC