ModeShape Distribution 3.0.0.Beta4

Class FixedWidthTextSequencer

  extended by org.modeshape.jcr.api.sequencer.Sequencer
      extended by org.modeshape.sequencer.text.AbstractTextSequencer
          extended by org.modeshape.sequencer.text.FixedWidthTextSequencer

public class FixedWidthTextSequencer
extends AbstractTextSequencer

An text sequencer implementation that uses a list of column numbers to split incoming rows into fixed-width columns. By default, this class treats each row as a single column. There is an implicit column start index of 0 for the first column.

See Also:

Nested Class Summary
Nested classes/interfaces inherited from class org.modeshape.jcr.api.sequencer.Sequencer
Constructor Summary
Method Summary
protected  String[] parseLine(String line)
          Parse the given row into its constituent columns.
 void setColumnStartPositions(int[] columnStartPositions)
          Set the column start positions.
 void setColumnStartPositions(String commaDelimitedColumnStartPositions)
          Set the column start positions from a list of column start positions concatenated into a single, comma-delimited string.
Methods inherited from class org.modeshape.sequencer.text.AbstractTextSequencer
execute, getCommentMarker, getMaximumLinesToRead, getRowFactoryClassName, initialize, setCommentMarker, setMaximumLinesToRead, setRowFactoryClassName
Methods inherited from class org.modeshape.jcr.api.sequencer.Sequencer
getAcceptedMimeTypes, getLogger, getName, getPathExpressions, getRepositoryName, getUniqueId, hasAcceptedMimeTypes, isAccepted, registerDefaultMimeTypes, registerNamespace, registerNodeTypes, registerNodeTypes, toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail


public FixedWidthTextSequencer()
Method Detail


public void setColumnStartPositions(int[] columnStartPositions)
Set the column start positions. The column start positions are 0-based. Everything before the first start position is treated as the first column.

As an example, if the column start positions were {3, 6, 15} and the incoming stream was:

           1         2
This sequencer would return the following rows:
 row 1: "sup", "erc", "allifragi", "listic"
 row 2: "exp:, "ial", "idocious"
Note that there are only three columns returned in the second row, as there were not enough characters to reach the third start position.

columnStartPositions - the column startPositions; may not be null


public void setColumnStartPositions(String commaDelimitedColumnStartPositions)
Set the column start positions from a list of column start positions concatenated into a single, comma-delimited string.

commaDelimitedColumnStartPositions - a list of column start positions concatenated into a single, comma-delimited string; may not be null
See Also:


protected String[] parseLine(String line)
Description copied from class: AbstractTextSequencer
Parse the given row into its constituent columns.

Specified by:
parseLine in class AbstractTextSequencer
line - the row to be parsed
an array of columns; never null

ModeShape Distribution 3.0.0.Beta4

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