com.lexmark.saperion.search.context

Class AbstractExpressionVisitor<ResultType,ExceptionType extends EcmException>

java.lang.Object

com.lexmark.saperion.search.context.AbstractExpressionVisitor<ResultType,ExceptionType>

All Implemented Interfaces:

ExpressionVisitor<ResultType,ExceptionType>

public abstract class AbstractExpressionVisitor<ResultType,ExceptionType extends EcmException>
extends Object
implements ExpressionVisitor<ResultType,ExceptionType>

This default implementation of ExpressionVisitor implements the iteration over children.

Author:

jschwarz

Constructor Summary

Constructors

Constructor and Description
AbstractExpressionVisitor()

Method Summary

Modifier and Type	Method and Description
abstract ResultType	finishVisit(BooleanAndExpression expression, List<ResultType> childrenResults)
abstract ResultType	finishVisit(BooleanOrExpression expression, List<ResultType> childrenResults)
abstract ResultType	finishVisit(Statement expression, ResultType childResult)
abstract ResultType	handleNegation(BooleanNotExpression expression, ResultType innerResult)
abstract void	startVisit(BooleanAndExpression expression)
abstract void	startVisit(BooleanOrExpression expression)
abstract void	startVisit(Statement expression)
ResultType	visit(BooleanAndExpression expression) This callback is called when a boolean 'and' is encountered.
ResultType	visit(BooleanNotExpression expression) This callback is called when a boolean 'not' is encountered.
ResultType	visit(BooleanOrExpression expression) This callback is called when a boolean 'or' is encountered.
ResultType	visit(Statement expression) This callback is called when a statement is encountered.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.lexmark.saperion.search.context.ExpressionVisitor

visit, visit

Constructor Detail

AbstractExpressionVisitor

public AbstractExpressionVisitor()

Method Detail

visit

public ResultType visit(BooleanAndExpression expression)
                 throws ExceptionType extends EcmException

Description copied from interface: ExpressionVisitor

This callback is called when a boolean 'and' is encountered.

Specified by:

visit in interface ExpressionVisitor<ResultType,ExceptionType extends EcmException>

Parameters:

expression - the expression encountered

Returns:

the result of the callback

Throws:

ExceptionType

ExceptionType extends EcmException

visit

public ResultType visit(BooleanOrExpression expression)
                 throws ExceptionType extends EcmException

Description copied from interface: ExpressionVisitor

This callback is called when a boolean 'or' is encountered.

Specified by:

visit in interface ExpressionVisitor<ResultType,ExceptionType extends EcmException>

Parameters:

expression - the expression encountered

Returns:

the result of the callback

Throws:

ExceptionType

ExceptionType extends EcmException

visit

public ResultType visit(Statement expression)
                 throws ExceptionType extends EcmException

Description copied from interface: ExpressionVisitor

This callback is called when a statement is encountered.

Specified by:

visit in interface ExpressionVisitor<ResultType,ExceptionType extends EcmException>

Parameters:

expression - the expression encountered

Returns:

the result of the callback

Throws:

ExceptionType

ExceptionType extends EcmException

visit

public ResultType visit(BooleanNotExpression expression)
                 throws ExceptionType extends EcmException

Description copied from interface: ExpressionVisitor

This callback is called when a boolean 'not' is encountered.

Specified by:

visit in interface ExpressionVisitor<ResultType,ExceptionType extends EcmException>

Parameters:

expression - the expression encountered

Returns:

the result of the callback

Throws:

ExceptionType

ExceptionType extends EcmException

startVisit

public abstract void startVisit(BooleanAndExpression expression)
                         throws ExceptionType extends EcmException

Throws:

ExceptionType extends EcmException

finishVisit

public abstract ResultType finishVisit(BooleanAndExpression expression,
                                       List<ResultType> childrenResults)
                                throws ExceptionType extends EcmException

Throws:

ExceptionType extends EcmException

startVisit

public abstract void startVisit(BooleanOrExpression expression)
                         throws ExceptionType extends EcmException

Throws:

ExceptionType extends EcmException

finishVisit

public abstract ResultType finishVisit(BooleanOrExpression expression,
                                       List<ResultType> childrenResults)
                                throws ExceptionType extends EcmException

Throws:

ExceptionType extends EcmException

startVisit

public abstract void startVisit(Statement expression)
                         throws ExceptionType extends EcmException

Throws:

ExceptionType extends EcmException

finishVisit

public abstract ResultType finishVisit(Statement expression,
                                       ResultType childResult)
                                throws ExceptionType extends EcmException

Throws:

ExceptionType extends EcmException

handleNegation

public abstract ResultType handleNegation(BooleanNotExpression expression,
                                          ResultType innerResult)
                                   throws ExceptionType extends EcmException

Throws:

ExceptionType extends EcmException