| LogWriter | 
| Tools | 
| aBasicDataFormatter | Abstract class for a content (logger field) formatter (also handling field enclosing marks). | 
| aBasicDataRetriever | Abstract data retriever class. | 
| aBasicDataValidator | Abstract class for a content (logger field) validator. | 
| aBasicFormatDescriptor | Abstract logging format descriptor class. | 
| aBasicLogger | Abstract logger class. | 
| aSingleton | Abstract class as a basis for Singleton. | 
| CombinedDataFormatter | Data formatter for the combined log format. | 
| CombinedDataRetriever | Data retriever for the combined log format. | 
| CombinedFormatDescriptor | Format descriptor for the combined log format (see: https://httpd.apache.org/docs/1.3/logs.html#combined). | 
| CombinedLogger | Logger for the combined log format, which is NCSA common plus two additional fields (see: https://httpd.apache.org/docs/1.3/logs.html#combined). | 
| CommonDataFormatter | Data formatter for the common log format. | 
| CommonDataRetriever | Data retriever for the common log format. | 
| CommonFormatDescriptor | Format descriptor for the NCSA common log format (see: https://en.wikipedia.org/wiki/Common_Log_Format). | 
| CommonLogger | Logger for the NCSA common log format (see: https://en.wikipedia.org/wiki/Common_Log_Format). | 
| DataRetrievalPolicy | Representation of a single policy for data retrieval. | 
| DataRetrievalPolicyHelper | Helper class for data retrieval policies | 
| DescriptorField | Representation of a single logging format field. | 
| DRP | Helper class for data retrieval policy constants | 
| ExtendedDataFormatter | Data formatter for the extended log file format. | 
| ExtendedDataRetriever | Data retriever for the extended log file format. | 
| ExtendedFormatDescriptor | Format descriptor for the W3C extended log file format (see: https://www.w3.org/TR/WD-logfile.html). | 
| ExtendedLogger | Logger for the extended log file format (see: https://www.w3.org/TR/WD-logfile.html). | 
| FormatDescriptorHelper | Helper class for format descriptors | 
| GenericDataValidator | Generic data validator. | 
| LogBuffer | Aggregator class for buffered logging. | 
| LogBufferHelper | Helper class for log buffer | 
| LoggerContent | Representation of the content of a single log entry/log event. | 
| PhpAppDataFormatter | Data formatter for PHP event/error/exception logging. | 
| PhpAppDataRetriever | Data retriever for PHP event/error/exception logging. | 
| PhpAppFormatDescriptor | Format descriptor for PHP event/error/exception logging. | 
| PhpAppLogger | Logger for PHP event/error/exception logging. | 
| PhpAppLoggerHelper | Helper class for PHP event logger, provides constants for RFC 5424 loglevels | 
| phpWTL | General global includes |