org.drools.rule.builder
Class MVELConstraintBuilder
java.lang.Object
org.drools.rule.builder.MVELConstraintBuilder
- All Implemented Interfaces:
- ConstraintBuilder
public class MVELConstraintBuilder
- extends Object
- implements ConstraintBuilder
Method Summary |
MVELCompilationUnit |
buildCompilationUnit(RuleBuildContext context,
Declaration[] previousDeclarations,
Declaration[] localDeclarations,
PredicateDescr predicateDescr,
AnalysisResult analysis)
|
MVELCompilationUnit |
buildCompilationUnit(RuleBuildContext context,
Pattern pattern,
String expression,
Map<String,OperatorDescr> aliases)
|
Constraint |
buildLiteralConstraint(RuleBuildContext context,
Pattern pattern,
ValueType vtype,
FieldValue field,
String expression,
String leftValue,
String operator,
String rightValue,
InternalReadAccessor extractor,
LiteralRestrictionDescr restrictionDescr)
|
Evaluator |
buildLiteralEvaluator(RuleBuildContext context,
InternalReadAccessor extractor,
LiteralRestrictionDescr literalRestrictionDescr,
ValueType vtype)
|
Constraint |
buildMvelConstraint(String packageName,
String expression,
Declaration[] declarations,
MVELCompilationUnit compilationUnit,
boolean isDynamic)
|
Constraint |
buildMvelConstraint(String packageName,
String expression,
Declaration[] declarations,
MVELCompilationUnit compilationUnit,
boolean isDynamic,
PredicateDescr base)
|
Constraint |
buildMvelConstraint(String packageName,
String expression,
Declaration[] declarations,
MVELCompilationUnit compilationUnit,
IndexUtil.ConstraintType constraintType,
Declaration indexingDeclaration,
InternalReadAccessor extractor,
boolean isUnification)
|
Constraint |
buildVariableConstraint(RuleBuildContext context,
Pattern pattern,
String expression,
Declaration[] declarations,
String leftValue,
OperatorDescr operatorDescr,
String rightValue,
InternalReadAccessor extractor,
Declaration requiredDeclaration,
RelationalExprDescr relDescr)
|
Evaluator |
getEvaluator(RuleBuildContext context,
BaseDescr descr,
ValueType valueType,
String evaluatorString,
boolean isNegated,
String parameters,
EvaluatorDefinition.Target left,
EvaluatorDefinition.Target right)
|
protected static Declaration |
getIndexingDeclaration(Restriction restriction)
|
EvaluatorDefinition.Target |
getRightTarget(InternalReadAccessor extractor)
|
boolean |
isMvelOperator(String operator)
|
protected static String |
normalizeMVELLiteralExpression(ValueType vtype,
FieldValue field,
String expr,
String leftValue,
String operator,
String rightValue,
LiteralRestrictionDescr restrictionDescr)
|
protected static String |
resolveUnificationAmbiguity(String expr,
Declaration[] declrations,
String leftValue,
String rightValue)
|
boolean |
useMvelExpression()
|
EvaluatorWrapper |
wrapEvaluator(Evaluator evaluator,
Declaration left,
Declaration right)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
USE_MVEL_EXPRESSION
public static final boolean USE_MVEL_EXPRESSION
- See Also:
- Constant Field Values
mvelOperators
protected static Set<String> mvelOperators
MVELConstraintBuilder
public MVELConstraintBuilder()
isMvelOperator
public boolean isMvelOperator(String operator)
- Specified by:
isMvelOperator
in interface ConstraintBuilder
useMvelExpression
public boolean useMvelExpression()
buildVariableConstraint
public Constraint buildVariableConstraint(RuleBuildContext context,
Pattern pattern,
String expression,
Declaration[] declarations,
String leftValue,
OperatorDescr operatorDescr,
String rightValue,
InternalReadAccessor extractor,
Declaration requiredDeclaration,
RelationalExprDescr relDescr)
- Specified by:
buildVariableConstraint
in interface ConstraintBuilder
buildMvelConstraint
public Constraint buildMvelConstraint(String packageName,
String expression,
Declaration[] declarations,
MVELCompilationUnit compilationUnit,
boolean isDynamic)
- Specified by:
buildMvelConstraint
in interface ConstraintBuilder
buildMvelConstraint
public Constraint buildMvelConstraint(String packageName,
String expression,
Declaration[] declarations,
MVELCompilationUnit compilationUnit,
boolean isDynamic,
PredicateDescr base)
buildMvelConstraint
public Constraint buildMvelConstraint(String packageName,
String expression,
Declaration[] declarations,
MVELCompilationUnit compilationUnit,
IndexUtil.ConstraintType constraintType,
Declaration indexingDeclaration,
InternalReadAccessor extractor,
boolean isUnification)
- Specified by:
buildMvelConstraint
in interface ConstraintBuilder
buildLiteralConstraint
public Constraint buildLiteralConstraint(RuleBuildContext context,
Pattern pattern,
ValueType vtype,
FieldValue field,
String expression,
String leftValue,
String operator,
String rightValue,
InternalReadAccessor extractor,
LiteralRestrictionDescr restrictionDescr)
- Specified by:
buildLiteralConstraint
in interface ConstraintBuilder
resolveUnificationAmbiguity
protected static String resolveUnificationAmbiguity(String expr,
Declaration[] declrations,
String leftValue,
String rightValue)
normalizeMVELLiteralExpression
protected static String normalizeMVELLiteralExpression(ValueType vtype,
FieldValue field,
String expr,
String leftValue,
String operator,
String rightValue,
LiteralRestrictionDescr restrictionDescr)
getIndexingDeclaration
protected static Declaration getIndexingDeclaration(Restriction restriction)
buildLiteralEvaluator
public Evaluator buildLiteralEvaluator(RuleBuildContext context,
InternalReadAccessor extractor,
LiteralRestrictionDescr literalRestrictionDescr,
ValueType vtype)
- Specified by:
buildLiteralEvaluator
in interface ConstraintBuilder
getRightTarget
public EvaluatorDefinition.Target getRightTarget(InternalReadAccessor extractor)
- Specified by:
getRightTarget
in interface ConstraintBuilder
getEvaluator
public Evaluator getEvaluator(RuleBuildContext context,
BaseDescr descr,
ValueType valueType,
String evaluatorString,
boolean isNegated,
String parameters,
EvaluatorDefinition.Target left,
EvaluatorDefinition.Target right)
- Specified by:
getEvaluator
in interface ConstraintBuilder
wrapEvaluator
public EvaluatorWrapper wrapEvaluator(Evaluator evaluator,
Declaration left,
Declaration right)
- Specified by:
wrapEvaluator
in interface ConstraintBuilder
buildCompilationUnit
public MVELCompilationUnit buildCompilationUnit(RuleBuildContext context,
Pattern pattern,
String expression,
Map<String,OperatorDescr> aliases)
- Specified by:
buildCompilationUnit
in interface ConstraintBuilder
buildCompilationUnit
public MVELCompilationUnit buildCompilationUnit(RuleBuildContext context,
Declaration[] previousDeclarations,
Declaration[] localDeclarations,
PredicateDescr predicateDescr,
AnalysisResult analysis)
- Specified by:
buildCompilationUnit
in interface ConstraintBuilder
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