Package net.sf.jasperreports.engine.util

Class JRQueryParser

java.lang.Object

net.sf.jasperreports.engine.util.JRQueryParser

public class JRQueryParser
extends Object

Report query parser.

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Field Summary

Fields

Modifier and Type	Field	Description
static String	EXCEPTION_MESSAGE_KEY_TOKEN_SEPARATORS_NOT_CONFIGURED

Constructor Summary

Constructors

Constructor	Description
JRQueryParser()

Method Summary

Modifier and Type	Method	Description
String	asClauseText(String[] tokens, Character separator)	(Re)constructs a query clause chunk from the chunk tokens.
String	asText(JRQueryChunk[] chunks)	(Re)creates the query text from a list of chunks.
protected char	defaultTokenSeparator()
protected char	determineClauseTokenSeparator(String clauseChunk)
protected String	getTokenSeparators()
static JRQueryParser	instance()	Returns a query parser instance.
void	parse(String text, JRQueryChunkHandler chunkHandler)	Parses a report query.
protected void	parseClause(JRQueryChunkHandler chunkHandler, String clauseChunk)

Methods inherited from class java.lang.Object

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

Field Detail

EXCEPTION_MESSAGE_KEY_TOKEN_SEPARATORS_NOT_CONFIGURED

public static final String EXCEPTION_MESSAGE_KEY_TOKEN_SEPARATORS_NOT_CONFIGURED

See Also:

Constant Field Values

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(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 void parseClause(JRQueryChunkHandler chunkHandler,
                           String clauseChunk)

determineClauseTokenSeparator

protected char determineClauseTokenSeparator(String clauseChunk)

getTokenSeparators

protected String getTokenSeparators()

asText

public 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 String asClauseText(String[] tokens,
                           Character separator)

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

Parameters:

tokens - the chunk tokens

separator - the chunk tokens separator character

Returns:

the reconstructed query clause chunk

See Also:

JRQueryChunk.TYPE_CLAUSE_TOKENS

defaultTokenSeparator

protected char defaultTokenSeparator()