org.codehaus.aspectwerkz.definition.expression
Class ExpressionExpression

java.lang.Object
  org.codehaus.aspectwerkz.definition.expression.Expression
      org.codehaus.aspectwerkz.definition.expression.ExpressionExpression

All Implemented Interfaces:

java.io.Serializable

public class ExpressionExpression

extends Expression

Class for sub-expression

Author:

Alexandre Vasseur

See Also:

Serialized Form

Constructor Summary

ExpressionExpression(ExpressionNamespace namespace, java.lang.String expression)
Create an anonymous expression

ExpressionExpression(ExpressionNamespace namespace, java.lang.String expression, java.lang.String name)
Create a named expression (for expression nesting)

Method Summary

java.util.Map	getCflowExpressions() Return a Map(name->Expression) of expression involved in the IN and NOT IN sub-expression of this Expression (can be empty)
boolean	match(ClassMetaData classMetaData) Checks if the expression matches a certain join point.
boolean	match(ClassMetaData classMetaData, MemberMetaData memberMetaData) Checks if the expression matches a certain join point.
boolean	match(ClassMetaData classMetaData, MemberMetaData memberMetaData, java.lang.String exceptionType) Checks if the expression matches a certain join point.
boolean	matchInOrNotIn(ClassMetaData classMetaData) Checks if the expression matches a certain join point as regards the IN and NOT IN parts if any.
boolean	matchInOrNotIn(ClassMetaData classMetaData, MemberMetaData memberMetaData) Checks if the expression matches a certain join point as regards IN / NOT IN parts Each IN / NOT IN part is evaluated independantly from the boolean algebra (TF time)

Methods inherited from class org.codehaus.aspectwerkz.definition.expression.Expression

getExpression, getName, getNamespace, getType, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ExpressionExpression

public ExpressionExpression(ExpressionNamespace namespace,
                            java.lang.String expression)

Create an anonymous expression

Parameters:

namespace -

expression -

ExpressionExpression

public ExpressionExpression(ExpressionNamespace namespace,
                            java.lang.String expression,
                            java.lang.String name)

Create a named expression (for expression nesting)

Parameters:

namespace -

expression -

name -

Method Detail

match

public boolean match(ClassMetaData classMetaData)

Description copied from class: Expression

Checks if the expression matches a certain join point.

Only checks for a class match to allow early filtering.

Only does a qualified guess, does not evaluate the whole expression since doing it only on class level would give the false results.

Specified by:

match in class Expression

Parameters:

classMetaData - the class meta-data

Returns:

boolean

matchInOrNotIn

public boolean matchInOrNotIn(ClassMetaData classMetaData)

Checks if the expression matches a certain join point as regards the IN and NOT IN parts if any. Each IN / NOT IN part is evaluated independantly from the boolean algebra (TF time)

Only checks for a class match to allow early filtering.

Only does a qualified guess, does not evaluate the whole expression since doing it only on class level would give the false results.

Specified by:

matchInOrNotIn in class Expression

Parameters:

classMetaData - the class meta-data

Returns:

boolean

matchInOrNotIn

public boolean matchInOrNotIn(ClassMetaData classMetaData,
                              MemberMetaData memberMetaData)

Checks if the expression matches a certain join point as regards IN / NOT IN parts Each IN / NOT IN part is evaluated independantly from the boolean algebra (TF time)

Specified by:

matchInOrNotIn in class Expression

Parameters:

classMetaData - the class meta-data

memberMetaData - the meta-data for the member

Returns:

boolean

match

public boolean match(ClassMetaData classMetaData,
                     MemberMetaData memberMetaData,
                     java.lang.String exceptionType)

Checks if the expression matches a certain join point.

Special case in the API which tries to match exception types as well.

Specified by:

match in class Expression

Parameters:

classMetaData - the class meta-data

memberMetaData - the meta-data for the member

exceptionType - the exception type (null => match all)

Returns:

boolean

match

public boolean match(ClassMetaData classMetaData,
                     MemberMetaData memberMetaData)

Checks if the expression matches a certain join point.

Specified by:

match in class Expression

Parameters:

classMetaData - the class meta-data

memberMetaData - the meta-data for the member

Returns:

boolean

getCflowExpressions

public java.util.Map getCflowExpressions()

Return a Map(name->Expression) of expression involved in the IN and NOT IN sub-expression of this Expression (can be empty)

Specified by:

getCflowExpressions in class Expression

Returns:

Map(name->Expression)