org.apache.chemistry.opencmis.server.support.query

Class QueryUtil

java.lang.Object

org.apache.chemistry.opencmis.server.support.query.QueryUtilBase<CmisQueryWalker>

org.apache.chemistry.opencmis.server.support.query.QueryUtil

Deprecated.

public class QueryUtil
extends QueryUtilBase<CmisQueryWalker>

Support class to assist in parsing and processing CMIS queries. This class inherits from QueryUtilBase to use the error handling methods. It does not follow its design and is only maintained for backwards compatibility.

Field Summary

Fields inherited from class org.apache.chemistry.opencmis.server.support.query.QueryUtilBase

parserTree, predicateWalker, queryObj, statement, tokens, walker

Constructor Summary

Constructors

Constructor and Description
QueryUtil() Deprecated.

Method Summary

Methods

Modifier and Type	Method and Description
static CmisQueryWalker	getWalker(String statement) Deprecated. Parse a CMISQL statement and return a tree that can be walked to evaluate the expression of the query (usually not used directly but through traverseStatement)
org.antlr.runtime.tree.CommonTree	parseStatement() Deprecated. Perform the first phase of query processing.
CmisQueryWalker	traverseStatement(String statement, QueryObject queryObj, PredicateWalkerBase pw) Deprecated. Parse and process a CMISQL statement using the higher level support classes
CmisQueryWalker	traverseStatementAndCatchExc(String statement, QueryObject queryObj, PredicateWalkerBase pw) Deprecated.
void	walkStatement() Deprecated. Perform the second phase of query processing, analyzes the select part, check for semantic errors, fill the query object.

Methods inherited from class org.apache.chemistry.opencmis.server.support.query.QueryUtilBase

getErrorMessage, getPredicateWalker, getQueryObject, getStatement, getWalker, processStatement, processStatementUsingCmisExceptions

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryUtil

public QueryUtil()

Deprecated.

Method Detail

parseStatement

public org.antlr.runtime.tree.CommonTree parseStatement()
                                                 throws org.antlr.runtime.RecognitionException

Deprecated.

Description copied from class: QueryUtilBase

Perform the first phase of query processing. Setup lexer and parser, parse the statement, check for syntax errors and create an AST

Specified by:

parseStatement in class QueryUtilBase<CmisQueryWalker>

Returns:

the abstract syntax tree of the parsed statement

Throws:

org.antlr.runtime.RecognitionException

walkStatement

public void walkStatement()
                   throws CmisQueryException,
                          org.antlr.runtime.RecognitionException

Deprecated.

Description copied from class: QueryUtilBase

Perform the second phase of query processing, analyzes the select part, check for semantic errors, fill the query object. Usually a walker will be CmisQueryWalker (or subclass) if the supporting OpenCMIS query classes are used.

Specified by:

walkStatement in class QueryUtilBase<CmisQueryWalker>

Throws:

org.antlr.runtime.RecognitionException

CmisQueryException

getWalker

public static CmisQueryWalker getWalker(String statement)
                                 throws org.antlr.runtime.RecognitionException

Deprecated.

Parse a CMISQL statement and return a tree that can be walked to evaluate the expression of the query (usually not used directly but through traverseStatement)

Parameters:

statement - CMISQL statement

Returns:

an AntLR tree grammar that can be traversed to evaluate the query

Throws:

org.antlr.runtime.RecognitionException

traverseStatement

public CmisQueryWalker traverseStatement(String statement,
                                QueryObject queryObj,
                                PredicateWalkerBase pw)
                                  throws UnsupportedEncodingException,
                                         IOException,
                                         org.antlr.runtime.RecognitionException

Deprecated.

Parse and process a CMISQL statement using the higher level support classes

Parameters:

statement - CMISQL statement

queryObj - CMIS query object filled with information what data need to be retrieved

pw - predicate walker that evaluates the where clause

Returns:

AntLR tree grammar created by this statement

Throws:

UnsupportedEncodingException

IOException

org.antlr.runtime.RecognitionException

traverseStatementAndCatchExc

public CmisQueryWalker traverseStatementAndCatchExc(String statement,
                                           QueryObject queryObj,
                                           PredicateWalkerBase pw)

Deprecated.