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c> There are a set of nice processors to the camel-cache component to provide the ability to perform cache lookups and selectively replace payload content at the

  • body
  • token
  • xpath level
Warning

The Cache consumer is an event based consumer and can be used to listen and respond to specific cache activities. If you need to perform selections from a pre-existing cache, used the processors defined for the cache component.

URI format

Code Block
cache:cacheName[?options]

...

Name

Default Value

Description

maxElementsInMemory

1000

The numer of elements that may be stored in the defined cache

memoryStoreEvictionPolicy

MemoryStoreEvictionPolicy.LFU

The number of elements that may be stored in the defined cache. Options include

  • MemoryStoreEvictionPolicy.LFU - Least frequently used
  • MemoryStoreEvictionPolicy.LRU - Least recently used
  • MemoryStoreEvictionPolicy.FIFO - first in first out, the oldest element by creation time

overflowToDisk

true

Specifies whether cache may overflow to disk

eternal

false

Sets whether elements are eternal. If eternal, timeouts are ignored and the
element is never expired.

timeToLiveSeconds

300

The maximum time between creation time and when an element expires.
Is only used if the element is not eternal

timeToIdleSeconds

300

The maximum amount of time between accesses before an element expires

diskPersistent

true

Whether the disk store persists between restarts of the Virtual Machine.
The default value is false.

diskExpiryThreadIntervalSeconds

120

The number of seconds between runs of the disk expiry thread. The default value
is 120 seconds

maxElementsInMemory

1000

The numer of elements that may be stored in the defined cache

readSize

0 / 2000

The default maximum number of rows that can be read by a polling query. The default value is 2000 for Camel 1.5.0 or older. In newer releases the default value is 0.

Result

The result is returned in the OUT body as an ArrayList<HashMap<String, Object>>. The List object contains the list of rows and the Map objects contain each row with the String key as the column name.

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