Module org.seasar.doma.core

Package org.seasar.doma.internal.expr

Class ExpressionEvaluator

java.lang.Object

org.seasar.doma.internal.expr.ExpressionEvaluator

All Implemented Interfaces:

ExpressionNodeVisitor<EvaluationResult,Void>

public class ExpressionEvaluator
extends Object
implements ExpressionNodeVisitor<EvaluationResult,Void>

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	ExpressionEvaluator.CandidateMethod
protected static class	ExpressionEvaluator.Number
protected static class	ExpressionEvaluator.ParameterCollection
protected class	ExpressionEvaluator.ParameterCollector
protected static class	ExpressionEvaluator.Text

Field Summary

Fields

Modifier and Type	Field	Description
protected final ClassHelper	classHelper
protected final ExpressionFunctions	expressionFunctions
protected final Map<String,Value>	variableValues

Constructor Summary

Constructors

Constructor	Description
ExpressionEvaluator()
ExpressionEvaluator(Map<String,Value> variableValues, ExpressionFunctions expressionFunctions, ClassHelper classHelper)
ExpressionEvaluator(ExpressionFunctions expressionFunctions, ClassHelper classHelper)

Method Summary

Modifier and Type	Method	Description
void	add(String variableName, Value value)
protected int	calculateHierarchyDifference(Class<?> paramType, Class<?> argType, int initDifference)
protected int	compare(ComparisonOperatorNode node, Object left, Object right)
protected EvaluationResult	createEvaluationResult(Object target, Object value, Class<?> valueClass, Type genericType)
protected ExpressionEvaluator.Number	createNumber(ArithmeticOperatorNode operatorNode, ExpressionNode operandNode, EvaluationResult evaluationResult)
protected ExpressionEvaluator.Text	createText(OperatorNode operatorNode, ExpressionNode operandNode, EvaluationResult evaluationResult)
EvaluationResult	evaluate(ExpressionNode node)
protected EvaluationResult	evaluateInternal(ExpressionNode node)
protected EvaluationResult	evaluateNotNullableOperandNode(ExpressionNode operatorNode, ExpressionNode operandNode, Void p)
protected Constructor<?>	findConstructor(ExpressionLocation location, Class<?> clazz, Class<?>... paramTypes)
protected Field	findField(String fieldName, Class<?> targetClass)
protected Method	findMethod(String methodName, Object target, Class<?> targetClass, Class<?>[] paramTypes)
protected Method	findMethodFromClasses(String methodName, Object target, Class<?> targetClass, Class<?>[] paramTypes)
protected Method	findMethodFromInterfaces(String methodName, Object target, Class<?> targetClass, Class<?>[] paramTypes)
protected Field	findStaticField(String fieldName, Class<?> targetClass)
protected Method	findStaticMethod(String methodName, Class<?> targetClass, Class<?>[] paramTypes)
protected Method	findSuiteMethod(List<Method> methods, Object target, Class<?> targetClass, Class<?>[] argTypes)
protected Class<?>	forClassName(ExpressionLocation location, String className)
protected EvaluationResult	getFieldValue(ExpressionLocation location, Field field, Object target)
protected EvaluationResult	invokeConstructor(ExpressionLocation location, Class<?> clazz, Constructor<?> constructor, Object... params)
protected EvaluationResult	invokeMethod(ExpressionLocation location, Method method, Object target, Class<?> targetClass, Class<?>[] paramTypes, Object[] params)
protected ExpressionException	newNotNumberException(ArithmeticOperatorNode operatorNode, ExpressionNode operandNode, EvaluationResult evaluationResult)
void	putValue(String variableName, Value value)
Value	removeValue(String variableName)
protected void	throwNotTextException(OperatorNode operatorNode, ExpressionNode operandNode, EvaluationResult evaluationResult)
EvaluationResult	visitAddOperatorNode(AddOperatorNode node, Void p)
EvaluationResult	visitAndOperatorNode(AndOperatorNode node, Void p)
EvaluationResult	visitCommaOperatorNode(CommaOperatorNode node, Void p)
EvaluationResult	visitDivideOperatorNode(DivideOperatorNode node, Void p)
EvaluationResult	visitEmptyNode(EmptyNode node, Void p)
EvaluationResult	visitEqOperatorNode(EqOperatorNode node, Void p)
EvaluationResult	visitFieldOperatorNode(FieldOperatorNode node, Void p)
EvaluationResult	visitFunctionOperatorNode(FunctionOperatorNode node, Void p)
EvaluationResult	visitGeOperatorNode(GeOperatorNode node, Void p)
EvaluationResult	visitGtOperatorNode(GtOperatorNode node, Void p)
EvaluationResult	visitLeOperatorNode(LeOperatorNode node, Void p)
EvaluationResult	visitLiteralNode(LiteralNode node, Void p)
EvaluationResult	visitLtOperatorNode(LtOperatorNode node, Void p)
EvaluationResult	visitMethodOperatorNode(MethodOperatorNode node, Void p)
EvaluationResult	visitModOperatorNode(ModOperatorNode node, Void p)
EvaluationResult	visitMultiplyOperatorNode(MultiplyOperatorNode node, Void p)
EvaluationResult	visitNeOperatorNode(NeOperatorNode node, Void p)
EvaluationResult	visitNewOperatorNode(NewOperatorNode node, Void p)
EvaluationResult	visitNotOperatorNode(NotOperatorNode node, Void p)
EvaluationResult	visitOrOperatorNode(OrOperatorNode node, Void p)
EvaluationResult	visitParensNode(ParensNode node, Void p)
EvaluationResult	visitStaticFieldOperatorNode(StaticFieldOperatorNode node, Void p)
EvaluationResult	visitStaticMethodOperatorNode(StaticMethodOperatorNode node, Void p)
EvaluationResult	visitSubtractOperatorNode(SubtractOperatorNode node, Void p)
EvaluationResult	visitVariableNode(VariableNode node, Void p)

Methods inherited from class java.lang.Object

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

Field Details

variableValues

protected final Map<String,Value> variableValues

expressionFunctions

protected final ExpressionFunctions expressionFunctions

classHelper

protected final ClassHelper classHelper

Constructor Details

ExpressionEvaluator

public ExpressionEvaluator()

ExpressionEvaluator

public ExpressionEvaluator(ExpressionFunctions expressionFunctions,
 ClassHelper classHelper)

ExpressionEvaluator

public ExpressionEvaluator(Map<String,Value> variableValues,
 ExpressionFunctions expressionFunctions,
 ClassHelper classHelper)

Method Details

putValue

public void putValue(String variableName,
 Value value)

removeValue

public Value removeValue(String variableName)

add

public void add(String variableName,
 Value value)

evaluate

public EvaluationResult evaluate(ExpressionNode node)

evaluateInternal

protected EvaluationResult evaluateInternal(ExpressionNode node)

visitEqOperatorNode

public EvaluationResult visitEqOperatorNode(EqOperatorNode node,
 Void p)

Specified by:

visitEqOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitNeOperatorNode

public EvaluationResult visitNeOperatorNode(NeOperatorNode node,
 Void p)

Specified by:

visitNeOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitGeOperatorNode

public EvaluationResult visitGeOperatorNode(GeOperatorNode node,
 Void p)

Specified by:

visitGeOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitGtOperatorNode

public EvaluationResult visitGtOperatorNode(GtOperatorNode node,
 Void p)

Specified by:

visitGtOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitLeOperatorNode

public EvaluationResult visitLeOperatorNode(LeOperatorNode node,
 Void p)

Specified by:

visitLeOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitLtOperatorNode

public EvaluationResult visitLtOperatorNode(LtOperatorNode node,
 Void p)

Specified by:

visitLtOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

compare

protected int compare(ComparisonOperatorNode node,
 Object left,
 Object right)
               throws ClassCastException

Throws:

ClassCastException

visitAndOperatorNode

public EvaluationResult visitAndOperatorNode(AndOperatorNode node,
 Void p)

Specified by:

visitAndOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitOrOperatorNode

public EvaluationResult visitOrOperatorNode(OrOperatorNode node,
 Void p)

Specified by:

visitOrOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitNotOperatorNode

public EvaluationResult visitNotOperatorNode(NotOperatorNode node,
 Void p)

Specified by:

visitNotOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitAddOperatorNode

public EvaluationResult visitAddOperatorNode(AddOperatorNode node,
 Void p)

Specified by:

visitAddOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

createText

protected ExpressionEvaluator.Text createText(OperatorNode operatorNode,
 ExpressionNode operandNode,
 EvaluationResult evaluationResult)

throwNotTextException

protected void throwNotTextException(OperatorNode operatorNode,
 ExpressionNode operandNode,
 EvaluationResult evaluationResult)

visitSubtractOperatorNode

public EvaluationResult visitSubtractOperatorNode(SubtractOperatorNode node,
 Void p)

Specified by:

visitSubtractOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitMultiplyOperatorNode

public EvaluationResult visitMultiplyOperatorNode(MultiplyOperatorNode node,
 Void p)

Specified by:

visitMultiplyOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitDivideOperatorNode

public EvaluationResult visitDivideOperatorNode(DivideOperatorNode node,
 Void p)

Specified by:

visitDivideOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitModOperatorNode

public EvaluationResult visitModOperatorNode(ModOperatorNode node,
 Void p)

Specified by:

visitModOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

createNumber

protected ExpressionEvaluator.Number createNumber(ArithmeticOperatorNode operatorNode,
 ExpressionNode operandNode,
 EvaluationResult evaluationResult)

newNotNumberException

protected ExpressionException newNotNumberException(ArithmeticOperatorNode operatorNode,
 ExpressionNode operandNode,
 EvaluationResult evaluationResult)

evaluateNotNullableOperandNode

protected EvaluationResult evaluateNotNullableOperandNode(ExpressionNode operatorNode,
 ExpressionNode operandNode,
 Void p)

visitLiteralNode

public EvaluationResult visitLiteralNode(LiteralNode node,
 Void p)

Specified by:

visitLiteralNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitParensNode

public EvaluationResult visitParensNode(ParensNode node,
 Void p)

Specified by:

visitParensNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitNewOperatorNode

public EvaluationResult visitNewOperatorNode(NewOperatorNode node,
 Void p)

Specified by:

visitNewOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

forClassName

protected Class<?> forClassName(ExpressionLocation location,
 String className)

findConstructor

protected Constructor<?> findConstructor(ExpressionLocation location,
 Class<?> clazz,
 Class<?>... paramTypes)

invokeConstructor

protected EvaluationResult invokeConstructor(ExpressionLocation location,
 Class<?> clazz,
 Constructor<?> constructor,
 Object... params)

visitMethodOperatorNode

public EvaluationResult visitMethodOperatorNode(MethodOperatorNode node,
 Void p)

Specified by:

visitMethodOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitStaticMethodOperatorNode

public EvaluationResult visitStaticMethodOperatorNode(StaticMethodOperatorNode node,
 Void p)

Specified by:

visitStaticMethodOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

findMethod

protected Method findMethod(String methodName,
 Object target,
 Class<?> targetClass,
 Class<?>[] paramTypes)

findMethodFromInterfaces

protected Method findMethodFromInterfaces(String methodName,
 Object target,
 Class<?> targetClass,
 Class<?>[] paramTypes)

findMethodFromClasses

protected Method findMethodFromClasses(String methodName,
 Object target,
 Class<?> targetClass,
 Class<?>[] paramTypes)

findSuiteMethod

protected Method findSuiteMethod(List<Method> methods,
 Object target,
 Class<?> targetClass,
 Class<?>[] argTypes)

calculateHierarchyDifference

protected int calculateHierarchyDifference(Class<?> paramType,
 Class<?> argType,
 int initDifference)

findStaticMethod

protected Method findStaticMethod(String methodName,
 Class<?> targetClass,
 Class<?>[] paramTypes)

invokeMethod

protected EvaluationResult invokeMethod(ExpressionLocation location,
 Method method,
 Object target,
 Class<?> targetClass,
 Class<?>[] paramTypes,
 Object[] params)

visitFunctionOperatorNode

public EvaluationResult visitFunctionOperatorNode(FunctionOperatorNode node,
 Void p)

Specified by:

visitFunctionOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitFieldOperatorNode

public EvaluationResult visitFieldOperatorNode(FieldOperatorNode node,
 Void p)

Specified by:

visitFieldOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitStaticFieldOperatorNode

public EvaluationResult visitStaticFieldOperatorNode(StaticFieldOperatorNode node,
 Void p)

Specified by:

visitStaticFieldOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

findField

protected Field findField(String fieldName,
 Class<?> targetClass)

findStaticField

protected Field findStaticField(String fieldName,
 Class<?> targetClass)

getFieldValue

protected EvaluationResult getFieldValue(ExpressionLocation location,
 Field field,
 Object target)

createEvaluationResult

protected EvaluationResult createEvaluationResult(Object target,
 Object value,
 Class<?> valueClass,
 Type genericType)

visitVariableNode

public EvaluationResult visitVariableNode(VariableNode node,
 Void p)

Specified by:

visitVariableNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitCommaOperatorNode

public EvaluationResult visitCommaOperatorNode(CommaOperatorNode node,
 Void p)

Specified by:

visitCommaOperatorNode in interface ExpressionNodeVisitor<EvaluationResult,Void>

visitEmptyNode

public EvaluationResult visitEmptyNode(EmptyNode node,
 Void p)

Specified by:

visitEmptyNode in interface ExpressionNodeVisitor<EvaluationResult,Void>