SimpleImageCache

java.lang.Object
- com.itextpdf.styledxmlparser.resolver.resource.SimpleImageCache

class SimpleImageCache
extends java.lang.Object

Simple implementation of an image cache.

Field Summary

Fields
Modifier and Type	Field	Description
`private java.util.Map<java.lang.String,PdfXObject>`	`cache`	The cache mapping a source path to an Image XObject.
`private int`	`capacity`	The capacity of the cache.
`private java.util.Map<java.lang.String,java.lang.Integer>`	`imagesFrequency`	Stores how many times each image is used.

Constructor Summary

Constructors
Constructor Description

SimpleImageCache()
Creates a new SimpleImageCache instance.

SimpleImageCache(int capacity)
Creates a new SimpleImageCache instance.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private void`	`ensureCapacity()`	Ensures the capacity of the cache by removing the least important images (based on the number of times an image is used).
`(package private) PdfXObject`	`getImage(java.lang.String src)`	Gets an image from the cache.
`(package private) void`	`putImage(java.lang.String src, PdfXObject imageXObject)`	Adds an image to the cache.
`(package private) void`	`reset()`	Resets the cache.
`(package private) int`	`size()`	Gets the size of the cache.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - cache
```
private java.util.Map<java.lang.String,PdfXObject> cache
```
    The cache mapping a source path to an Image XObject.
  - imagesFrequency
```
private java.util.Map<java.lang.String,java.lang.Integer> imagesFrequency
```
    Stores how many times each image is used.
  - capacity
```
private int capacity
```
    The capacity of the cache.
- Constructor Detail
  - SimpleImageCache
```
SimpleImageCache()
```
    Creates a new SimpleImageCache instance.
  - SimpleImageCache
```
SimpleImageCache(int capacity)
```
    Creates a new SimpleImageCache instance.
    
    Parameters:
    
    capacity - the capacity
- Method Detail
  - putImage
```
void putImage(java.lang.String src,
              PdfXObject imageXObject)
```
    Adds an image to the cache.
    
    Parameters:
    
    src - the source path
    
    imageXObject - the image XObject to be cached
  - getImage
```
PdfXObject getImage(java.lang.String src)
```
    Gets an image from the cache.
    
    Parameters:
    
    src - the source path
    
    Returns:
    
    the image XObject
  - size
```
int size()
```
    Gets the size of the cache.
    
    Returns:
    
    the cache size
  - reset
```
void reset()
```
    Resets the cache.
  - ensureCapacity
```
private void ensureCapacity()
```
    Ensures the capacity of the cache by removing the least important images (based on the number of times an image is used).