All posts by The DataPipeline Team

• added streaming JSON reading and writing (simple and template based)
• added SimpleXmlWriter
• improved handling of recursive XML-to-records
• added user-definable demux strategies
• DeMuxReader is no longer a public class since it should not be reference directly
• improved exception handling in JdbcReader
• BUGFIX: JavaBeanReader now handles xpath for recursive text children
• updated Apache POI to v3.9
• IncludeFields & ExcludeFields now accept a collection of field names in their constructor and add method
• added JdbcReader.useColumnLabel property to allow fields to be named using the column labels (or aliases) instead of the underlying, real column names
• added Excel 2007 provider (POI_XSSF)
  Excel handling now defaults to the Apache POI_XSSF (Excel 2007) provider, instead of POI (Excel 2003)
• added FixedWidthField.align to allow left-filled (right aligned) fields
• added FixedWidthField.fillChar to allow fields to specify a different filler from their reader/writer
• reduced memory overhead for fields and records
• CSV performance improvements
• exception property values now truncated to 256 chars
• using StringBuilder (instead of StringBuffer) internally to improve performance

• added TemplateWriter for writing text streams using FreeMarker templates
• added new examples for writing XML and HTML files using TemplateWriter
• BUGFIX: XmlWriter’s (XmlTemplate, File) constructor now calls setFieldNamesInFirstRow(false) by default
• BUGFIX: The JxlProvider now converts intervals and user-defined types to string when generating Excel files
• Intervals are no longer converted to strings when added to a field/record
• BasicFieldTransformer can now convert numbers to intervals (seconds, months, days, minutes, etc.)
• JdbcWriter now has public accessors for connection, tableName, batchMode, and jdbcTypes
• individual fields can now be removed from a FieldList
• FieldList can now accept collections of strings
• updated Apache POI to v3.8

• added JdbcMultiWriter for multi-threaded writing to one or more database connections concurrently
• added multi-threaded AsyncWriter to compliment AsyncReader
• data writers now have an available() method to indicate the number of records that can probably be written without blocking
• MultiWriter now supports configurable write strategies (ReplicateWriteStrategy, RoundRobinWriteStrategy, AvailableCapacityWriteStrategy, and user defined)
• added support for CLOB fields (see JdbcValueReader.DEFAULT)
• Field and Record’s toString() methods now limit displayed strings to the first 128 characters
• RecordMeter is now public and returned by MeteredReader and MeteredWriter’s getMeter() method
• BUGFIX: record count is no longer off by 1 in some cases

• performance improvements in CSV and fixed width handling
• untyped expression evaluation is now based on the value’s type, instead of the field’s declared type
• BUGFIX: now handles untyped expressions between primitive and object values
• float expressions are now upgraded to doubles during evaluation
• all non doubles and floats numbers are now upgraded to longs during evaluation
• expressions can now reference Java beans, not just primitive values
• method call expression now finds the most appropriate method based on the runtime argument types (http://en.wikipedia.org/wiki/Multiple_dispatch)
• improved handling for collections and arrays in DataException properties
• Apache PoiProvider can now distinguish between date, time, and datetimes fields in Excel

• Added JavaBeanReader whice uses XPath expressions to identify field values and break records (see the Read from Java beans example)
• AbstractReader’s setStartingRow and setLastRow no return this
• Filter rule IsInstanceOfJavaType now returns false for null values
• Added number-to-date methods to BasicFieldTransformer (numberToDate(), minutesToDate(), hoursToDate(), and daysToDate())
• BasicFieldTransformer.Operation and BasicFieldTransformer.StringOperation are now public classes
• BasicFieldTransformer.add(Operation … operation) is now public
• ConditionalTransformer is now private (use TransformingReader.filter instead)
• TransformingReader now contains an optional Filter, allowing any transformer to be conditionally applied
• Removed TransformingReader.add(Filter filter, Transformer … transformer) method

Data Pipeline 2.2.3 is now available with the following enhancements:

• added JdbcValueReaderto allow clients to override column reading strategy
• added the JdbcReader.valueReader property

Data Pipeline 2.2.2 is now available with the following enhancements:

• added the XmlTemplate functionality
• XmlWriter now uses XmlTemplate to describe output patterns

Data Pipeline 2.2.1 is now available with the following enhancements:

• added batch execution to JdbcWriter (see JdbcWriter.setBatchSize)
• added callback mechanism to track job progress (see JobTemplate.transfer(R reader, W writer, boolean async, JobCallback callback))
• early access to DeMuxReader

We are happy to announce that Data Pipeline 2.2 is now released. We have added the enhancements below:

• added an XPath-based XmlReader
• updates so that Excel now defaults to the Apache POI instead of JXL
• updates so that the following classes use java.util.List instead of java.util.ArrayList in their public APIs: CompositeValue, FieldList, Lookup, LookupTransformer, Record, RecordList