ImageCacheListener
Date: 2016-04-28

org.apache.xmlgraphics.image.loader.cache

## Interface ImageCacheListener

- All Superinterfaces:
    java.util.EventListener
  All Known Implementing Classes:
    ImageCacheStatistics

      public interface ImageCacheListener
      extends java.util.EventListener

  This interface can be implemented by classes which want to know what's going on inside the image cache.

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `cacheHitImage(ImageKey key)` An Image was found in the cache
    `void` | `cacheHitImageInfo(java.lang.String uri)` An ImageInfo was found in the cache
    `void` | `cacheMissImage(ImageKey key)` An Image was not in the cache
    `void` | `cacheMissImageInfo(java.lang.String uri)` An ImageInfo was not in the cache
    `void` | `invalidHit(java.lang.String uri)` An URi previously identified as invalid was requested again

- - ### Method Detail

    - #### invalidHit

          void invalidHit(java.lang.String uri)

      An URi previously identified as invalid was requested again
      Parameters:
        `uri` - the invalid URI

    - #### cacheHitImageInfo

          void cacheHitImageInfo(java.lang.String uri)

      An ImageInfo was found in the cache
      Parameters:
        `uri` - the image's URI

    - #### cacheMissImageInfo

          void cacheMissImageInfo(java.lang.String uri)

      An ImageInfo was not in the cache
      Parameters:
        `uri` - the image's URI

    - #### cacheHitImage

          void cacheHitImage(ImageKey key)

      An Image was found in the cache
      Parameters:
        `key` - the image key

    - #### cacheMissImage

          void cacheMissImage(ImageKey key)

      An Image was not in the cache
      Parameters:
        `key` - the image key