net.sf.jasperreports.engine.util
Class JRQueryParser

java.lang.Object
  net.sf.jasperreports.engine.util.JRQueryParser

public class JRQueryParser
extends java.lang.Object

Report query parser.

Version:

$Id: JRQueryParser.java 5088 2012-03-15 11:55:32Z teodord $

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Constructor Summary

JRQueryParser()

Method Summary

java.lang.String	asClauseText(java.lang.String[] tokens) (Re)constructs a query clause chunk from the chunk tokens.
java.lang.String	asText(JRQueryChunk[] chunks) (Re)creates the query text from a list of chunks.
protected java.lang.String	determineClauseTokenSeparator(java.lang.String clauseChunk)
protected java.lang.String	getTokenSeparators()
static JRQueryParser	instance() Returns a query parser instance.
void	parse(java.lang.String text, JRQueryChunkHandler chunkHandler) Parses a report query.
protected java.lang.String[]	parseClause(java.lang.String clauseChunk)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JRQueryParser

public JRQueryParser()

Method Detail

instance

public static JRQueryParser instance()

Returns a query parser instance.

Returns:

a query parser instance

parse

public void parse(java.lang.String text,
                  JRQueryChunkHandler chunkHandler)

Parses a report query.

Parameters:

text - the query text

chunkHandler - a handler that will be asked to handle parsed query chunks

parseClause

protected java.lang.String[] parseClause(java.lang.String clauseChunk)

determineClauseTokenSeparator

protected java.lang.String determineClauseTokenSeparator(java.lang.String clauseChunk)

getTokenSeparators

protected java.lang.String getTokenSeparators()

asText

public java.lang.String asText(JRQueryChunk[] chunks)

(Re)creates the query text from a list of chunks.

Parameters:

chunks - the chunks

Returns:

the recreated query text

asClauseText

public java.lang.String asClauseText(java.lang.String[] tokens)

(Re)constructs a query clause chunk from the chunk tokens.

Parameters:

tokens - the chunk tokens

Returns:

the reconstructed query clause chunk

See Also:

JRQueryChunk.TYPE_CLAUSE_TOKENS