Examples of com.persistit.Configuration

• com.persistit.Configuration

  Configuration parameters used to determine locations of files, sizes of buffer pool and journal allocation, policies and other parameters required during Persistit initialization.

  An application can construct and set up a Configuration using setXXX methods directly. Alternatively, the configuration can be specified in a set of properties that are read and interpreted by the Configuration. This object is used directly or indirectly by the following methods:

  • {@link Persistit#setConfiguration(Configuration)} - assigns a suppliedConfiguration directly.
  • {@link Persistit#setProperties(Properties)} - creates and loads aConfiguration from the supplied Properties.
  • {@link Persistit#setPropertiesFromFile(String)} - loads a properties filefrom the specified file name, and then constructs a Configuration from the loaded Properties.
  • {@link Persistit#initialize()} - loads a properties file from a defaultname and then constructs a Configuration from the loaded Properties.

  When parsing Properties values this class implements a simple substitution mechanism so that, for example, a common directory path may be referenced by multiple properties as shown here:

   datapath = /var/lib/persistit journalpath = ${datapath}/akiban_journal volume.1=${datapath}/hwdemo,create,pageSize:16K,\ initialSize:10M,extensionSize:10M,maximumSize:1G  

  In this example the property named datapath has no special meaning other than as a substitution parameter.

  @author peter

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