Package com.documentum.fc.client.search

Class DfExpressionVisitor

java.lang.Object

com.documentum.fc.client.search.DfExpressionVisitor

public abstract class DfExpressionVisitor
extends Object

Abstract visitor used to visit an IDfExpression.

The Visitor pattern allows to visit an expression node or an expression tree, with no need to cast the different kinds of expression.

See Also:

• IDfExpression.acceptVisitor(DfExpressionVisitor)

Constructor Summary

Constructors

Constructor	Description
DfExpressionVisitor()

Method Summary

Modifier and Type	Method	Description
void	visit(IDfExpressionSet expr)	Visits an IDfExpressionSet.
void	visit(IDfFullTextExpression expr)	Visits an IDfFullTextExpression.
void	visit(IDfRelativeDateExpression expr)	Visits an IDfRelativeDateExpression.
void	visit(IDfSimpleAttrExpression expr)	Visits an IDfSimpleAttrExpression.
void	visit(IDfValueListAttrExpression expr)	Visits an IDfValueListAttrExpression.
void	visit(IDfValueRangeAttrExpression expr)	Visits an IDfValueRangeAttrExpression.

Methods inherited from class java.lang.Object

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

Constructor Details

DfExpressionVisitor

public DfExpressionVisitor()

Method Details

visit

public void visit(IDfExpressionSet expr)
           throws DfException

Visits an IDfExpressionSet.

This class default implementation iterates over its children and recursively visits the sub-expressions. If the implementer doesn't call super, he can implement his own iterating mechanism.

Parameters:

expr - The expression visited.

Throws:

DfSearchException - The exception thrown by the visitor (by default, no such exception is thrown).

DfException

visit

public void visit(IDfValueListAttrExpression expr)
           throws DfException

Visits an IDfValueListAttrExpression.

Parameters:

expr - The expression visited.

Throws:

DfSearchException - The exception thrown by the visitor.

DfException

visit

public void visit(IDfFullTextExpression expr)
           throws DfException

Visits an IDfFullTextExpression.

Parameters:

expr - The expression visited.

Throws:

DfSearchException - The exception thrown by the visitor.

DfException

visit

public void visit(IDfSimpleAttrExpression expr)
           throws DfException

Visits an IDfSimpleAttrExpression.

Parameters:

expr - The expression visited.

Throws:

DfSearchException - The exception thrown by the visitor.

DfException

visit

public void visit(IDfRelativeDateExpression expr)
           throws DfException

Visits an IDfRelativeDateExpression.

Parameters:

expr - The expression visited.

Throws:

DfSearchException - The exception thrown by the visitor.

DfException

visit

public void visit(IDfValueRangeAttrExpression expr)
           throws DfException

Visits an IDfValueRangeAttrExpression.

Parameters:

expr - The expression visited.

Throws:

DfSearchException - The exception thrown by the visitor.

DfException