Expression Filter with Expression Parser

parent nodes: PrefuseDoku

Expression Filter with Expression Parser

You can create a Expression with the ExpressionParser.

For example:

// creates an expression wich refers to all Tuples with field edgeType =  'sepicalEgde' 
Predicate specialEdgePredicate = ExpressionParser.predicate("edgeType  == 'specialEdge' ");
// creates an expression wich refers to all Tuples with field name starting with 'eva'
Predicate specialNodePredicate = ExpressionParser.predicate("LEFT(name, 3)== 'eva' ");

The API documentation is exhaustive:
http://prefuse.org/doc/api/prefuse/data/expression/parser/ExpressionParser.html