[Jakarta-commons Wiki] Update of "Pool" by sandymac

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The following page has been changed by sandymac:
http://wiki.apache.org/jakarta-commons/Pool

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   ||Add your questions/answers here.||
  
- If I have multiple threads calling into my method which contains the borrowObject call,
+ Q: If I have multiple threads calling into my method which contains the borrowObject call,
  do I have to synchronize around this, or are borrowObject and returnObject thread safe?
  
- What is the general purpose of pooling Interfaces ?
+ A: They appear to be thread safe. I haven't extensively studied the source the relevant code is synchronized.
  
+ 
+ Q: What is the general purpose of pooling Interfaces ?
+ 
- ''You don't pool interfaces but objects implementing the interfaces.
+ A: ''You don't pool interfaces but objects implementing the interfaces.
  An object pool is used to reduce the cost of creating/destroying the pooled object (memory,CPU and other resources).
  Commons-Pool provides several general purpose implementations of different pooling strategies. 
  See also [http://jakarta.apache.org/commons/pool/guide/index.html developers guide].

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