org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor Class Reference

Inherits org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor.

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[legend]Collaboration diagram for org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor:

[legend]List of all members.

Public Member Functions
	EjbqlQueryFilterVisitor (PMapper _mapper, Map _fields, Class[] parameterTypes, ASTEJBQL ejbql, QueryBuilder qb) throws Exception
Expression	getQueryFilter ()
Object	visit (ASTWhereClause node, Object data)
Object	visit (ASTSingleValuedPathExpression node, Object data)
Object	visit (ASTCmpPathExpression node, Object data)
Object	visit (ASTSingleValuedCmrPathExpression node, Object data)
Object	visit (ASTCollectionValuedPathExpression node, Object data)
Object	visit (ASTConditionalExpression node, Object data)
Object	visit (ASTConditionalTerm node, Object data)
Object	visit (ASTConditionalFactor node, Object data)
Object	visit (ASTBetweenExpression node, Object data)
Object	visit (ASTInExpression node, Object data)
Object	visit (ASTLikeExpression node, Object data)
Object	visit (ASTNullComparisonExpression node, Object data)
Object	visit (ASTEmptyCollectionComparisonExpression node, Object data)
Object	visit (ASTCollectionMemberExpression node, Object data)
Object	visit (ASTComparisonExpression node, Object data)
Object	visit (ASTArithmeticExpression node, Object data)
Object	visit (ASTArithmeticTerm node, Object data)
Object	visit (ASTArithmeticFactor node, Object data)
Object	visit (ASTStringExpression node, Object data)
Object	visit (ASTDatetimeExpression node, Object data)
Object	visit (ASTBooleanExpression node, Object data)
Object	visit (ASTEntityBeanExpression node, Object data)
Object	visit (ASTFunctionsReturningStrings node, Object data)
Object	visit (ASTFunctionsReturningNumerics node, Object data)
Object	visit (ASTIdentificationVariable node, Object data)
Object	visit (ASTLiteral node, Object data)
Object	visit (ASTStringLiteral node, Object data)
Object	visit (ASTArithmeticLiteral node, Object data)
Object	visit (ASTIntegerLiteral node, Object data)
Object	visit (ASTFloatingPointLiteral node, Object data)
Object	visit (ASTBooleanLiteral node, Object data)
Object	visit (ASTInputParameter node, Object data)
Object	visit (ASTPath node, Object data)

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Detailed Description

Implementation of a visitor that creates the filter corresponding to the WHERE clause. Created on Sep 6, 2002

Author:

Christophe Ney [cney@batisseurs.com] : Intial developer

Helene Joanin: Take into account the following operators abs(x), sqrt(x), length(str), substring(s, start, length), locate(str1, str2), locate(str1, str2, start).

Helene Joanin: EJBLocalObject as parameter of a EJB-QL query.

Helene Joanin: Take into account the InExpression (IN operator).

Helene Joanin: Take into account the IS NULL operator.

Helene Joanin: Fix a bug in the visitor for ASTIdentificationVariable: push a BasicFieldOperand(field) instead of the field itself.

Helene Joanin: add '.element' to the path for CollectionValuedPathExpression.

Helene Joanin: Convert IsNull(cmr-field) to Equal(cmr-field, PNameNull).

Helene Joanin: Take into account the operators: IS EMPTY / IS NOT EMPTY

Helene Joanin: Take into account the CONCAT operator

Helene Joanin: Take into account the EJBQL version 2.1 syntax.

Helene Joanin: Take into account the operator MOD.

Helene Joanin: Take into account the operator ISNULL with a parameter.

Definition at line 139 of file EjbqlQueryFilterVisitor.java.

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Constructor & Destructor Documentation

org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.EjbqlQueryFilterVisitor (  PMapper  _mapper, Map  _fields, Class[]  parameterTypes, ASTEJBQL  ejbql, QueryBuilder  qb )  throws Exception

Constructor Parameters: _mapper  the mapper of each fields. Needed to build the expression for the IsNull with a reference as an operand. This parameter may be null in case of the GenIC phase _fields  QueryTreeFields for all defined identifiers and all path expression of the query parameterTypes  Type of paramaters of the finder/select method ejbql  root of the lexical tree of the query Definition at line 158 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Member Function Documentation

Expression org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.getQueryFilter (   )

get the query filter that was built from visiting the syntaxic tree Definition at line 173 of file EjbqlQueryFilterVisitor.java.

Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTPath  node, Object  data )

Push the Node to the stack Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 819 of file EjbqlQueryFilterVisitor.java.

Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTInputParameter  node, Object  data )

Node with value set to parameter index (1..n) string. Push the corresponding Operand to the stack Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 794 of file EjbqlQueryFilterVisitor.java.

Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTBooleanLiteral  node, Object  data )

Node with value set to litteral boolean. Push the corresponding Operand to the stack Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 785 of file EjbqlQueryFilterVisitor.java.

Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTFloatingPointLiteral  node, Object  data )

Node with value set to integer litteral arithmetic. Push the corresponding Operand to the stack Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 776 of file EjbqlQueryFilterVisitor.java.

Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTIntegerLiteral  node, Object  data )

Node with value set to integer litteral arithmetic. Push the corresponding Operand to the stack Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 767 of file EjbqlQueryFilterVisitor.java.

Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTArithmeticLiteral  node, Object  data )

Visit child nodes arithmetic_literal ::= integer_literal | floatingpoint_literal Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 758 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTStringLiteral  node, Object  data )

Node with value set to litteral string. Push the corresponding Operand to the stack Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 749 of file EjbqlQueryFilterVisitor.java.

Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTLiteral  node, Object  data )

Visit child nodes literal ::= string_literal | arithmetic_literal | boolean_literal Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 740 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTIdentificationVariable  node, Object  data )

Node with value set to identification variable string. Push the Node to the stack Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 729 of file EjbqlQueryFilterVisitor.java.

Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTFunctionsReturningNumerics  node, Object  data )

visit child nodes Push corresponding Expression to the stack. functions_returning_numerics ::= LENGTH (string_expression) | LOCATE (string_expression, string_expression [ , arithmetic_expression ] ) | ABS (arithmetic_expression) | SQRT (arithmetic_expression) | MOD (arithmetic_expression , arithmetic_expression) Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 679 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.ops, org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.third, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTFunctionsReturningStrings  node, Object  data )

visit child nodes Push corresponding Expression to the stack. functions_returning_strings ::= CONCAT (string_expression, string_expression) | SUBSTRING (string_expression,arithmetic_expression,arithmetic_expression) Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 642 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.ops, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTEntityBeanExpression  node, Object  data )

Visit child nodes entity_bean_expression ::= entity_bean_value | input_parameter Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 630 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTBooleanExpression  node, Object  data )

Visit child nodes boolean_expression ::= cmp_path_expression | boolean_literal | input_parameter Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 620 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTDatetimeExpression  node, Object  data )

Visit child nodes datetime_expression ::= datetime_value | input_parameter Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 610 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTStringExpression  node, Object  data )

Visit child nodes string_expression ::= string_primary | input_parameter Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 600 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTArithmeticFactor  node, Object  data )

Push corresponding Expression to the stack. arithmetic_factor ::= [ + |- ] arithmetic_primary Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 582 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.ops, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTArithmeticTerm  node, Object  data )

Push corresponding Expression to the stack. arithmetic_term ::= arithmetic_factor [ { * | / } arithmetic_factor ]* Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 560 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.jjtGetNumChildren(), org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.ops, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTArithmeticExpression  node, Object  data )

Push corresponding Expression to the stack. arithmetic_expression ::= arithmetic_term [ { + | - } arithmetic_term ] * Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 538 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.jjtGetNumChildren(), org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.ops, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTComparisonExpression  node, Object  data )

Push corresponding Expression to the stack. comparison_expression ::= string_value { = | > | >= | < | <= | <> } string_expression | boolean_value { = | <>} boolean_expression | datetime_value { = | > | >= | < | <= | <> } datetime_expression | entity_bean_value { = | <> } entity_bean_expression | arithmetic_value { = | > | >= | < | <= | <> } single_value_designator Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 505 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.ops, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTCollectionMemberExpression  node, Object  data )

Push corresponding Expression to the stack. collection_member_expression ::= {single_valued_cmr_path_expression | identification_variable | input_parameter} [ NOT ] MEMBER [ OF ] collection_valued_path_expression Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 474 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.not, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTEmptyCollectionComparisonExpression  node, Object  data )

Nothing to do: Already taken into account in EjbqlVariableVisitor at the variables parsing, so, just push the OP_IGNORE in the stack empty_collection_comparison_expression ::= collection_valued_path_expression IS [ NOT ] EMPTY Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 457 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.not, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTNullComparisonExpression  node, Object  data )

Push corresponding Expression to the stack. null_comparison_expression ::= {single_valued_path_expression|input_parameter} IS [ NOT ] NULL Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 398 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.not, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTLikeExpression  node, Object  data )

Push corresponding Expression to the stack. like_expression ::= cmp_path_expression [ NOT ] LIKE pattern_value [ ESCAPE escape_character ] Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 376 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.not, org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.third, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTInExpression  node, Object  data )

Push corresponding Expression to the stack. in_expression ::= cmp_path_expression [ NOT ] IN {literal|input_parameter} [ , {literal|input_parameter} ] * ) Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 354 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.eltnum, org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.not, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTBetweenExpression  node, Object  data )

Push corresponding Expression to the stack. between_expression ::= arithmetic_expression [ NOT ] BETWEEN arithmetic_expression AND arithmetic_expression Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 335 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.not, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTConditionalFactor  node, Object  data )

Push corresponding Expression to the stack. conditional_factor ::= [ NOT ] conditional_test Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 319 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.not, and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTConditionalTerm  node, Object  data )

Push corresponding Expression to the stack. conditional_term ::= conditional_factor [ AND conditional_factor ]* Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 298 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.jjtGetNumChildren(), and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTConditionalExpression  node, Object  data )

Push corresponding Expression to the stack. conditional_expression ::= conditional_term [ OR conditional_term ]* Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 277 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.deployment.ejbql.SimpleNode.jjtGetNumChildren(), and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTCollectionValuedPathExpression  node, Object  data )

Push corresponding MedorField to the stack. collection_valued_path_expression ::= path was in initial BNF collection_valued_path_expression ::= identification_variable. [ single_valued_cmr_field. ] *collection_valued_cmr_field Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 255 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor.mergePath(), org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor.splitPath(), and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTSingleValuedCmrPathExpression  node, Object  data )

Push corresponding MedorField to the stack. single_valued_cmr_path_expression ::= path was in initial BNF single_valued_cmr_path_expression ::= identification_variable. [ single_valued_cmr_field. ] * single_valued_cmr_field Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 236 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTCmpPathExpression  node, Object  data )

Push corresponding MedorField to the stack. cmp_path_expression ::= path was in initial BNF cmp_path_expression ::= identification_variable. [ single_valued_cmr_field. ] * cmp_field Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 217 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTSingleValuedPathExpression  node, Object  data )

Push corresponding MedorField to the stack. single_valued_path_expression ::= path was in initial BNF single_valued_path_expression ::= cmp_path_expression | single_valued_cmr_path_expression Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 197 of file EjbqlQueryFilterVisitor.java. References org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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Object org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit (  ASTWhereClause  node, Object  data )

If query contains WHERE clause, visit child nodes where_clause ::= WHERE conditional_expression Reimplemented from org.objectweb.jonas_ejb.lib.EjbqlAbstractVisitor. Definition at line 181 of file EjbqlQueryFilterVisitor.java. Referenced by org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.EjbqlQueryFilterVisitor(), and org.objectweb.jonas_ejb.lib.EjbqlQueryFilterVisitor.visit().

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The documentation for this class was generated from the following file:

• src/org/objectweb/jonas_ejb/lib/EjbqlQueryFilterVisitor.java

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