import org.apache.jena.sparql.engine.binding.BindingFactory; //导入依赖的package包/类
@Override
protected Binding moveToNextBinding() {
	// we need a binding that's ?s ?p ?o
	try {
		Triple triple = triples.next();
		BindingMap binding = BindingFactory.create();
		binding.add(Var.alloc("s"), triple.getSubject());
		binding.add(Var.alloc("p"), triple.getPredicate());
		binding.add(Var.alloc("o"), triple.getObject());
		return binding;
	} catch (RiotException e) {
		// bug in empty results for describe.  this is
		// a workaround. TODO
	}
	return BindingFactory.binding();
}
 

import org.apache.jena.sparql.engine.binding.BindingFactory; //导入依赖的package包/类
@SafeVarargs
private final Binding createBinding(Pair<Var, Node>... bindings) {
	BindingMap map = BindingFactory.create();
	for (Pair<Var, Node> binding : bindings) {
		map.add(binding.getLeft(), binding.getRight());
	}
	return map;
}
 

import org.apache.jena.sparql.engine.binding.BindingFactory; //导入依赖的package包/类
/** Evaluate a BGP : encapsulate for a better/different version */  
private static QueryIterator match(Graph source, BasicPattern pattern) {
    ExecutionContext execContext = new ExecutionContext(ARQ.getContext(), source, null, null) ; 
    // Create a chain of triple iterators.
    QueryIterator chain = QueryIterSingleton.create(BindingFactory.root(), execContext) ; 
    for (Triple triple : pattern)
        chain = new QueryIterTriplePattern(chain, triple, execContext) ;
    return chain ;
}
 

import org.apache.jena.sparql.engine.binding.BindingFactory; //导入依赖的package包/类
@Override
protected Binding moveToNextBinding() {
    Entry<Node, Node> e = entries.next();
    BindingMap b = BindingFactory.create(binding) ;
    b.add(var1, e.getKey()) ; 
    b.add(var2, e.getValue()) ;
    return b;
}
 

import org.apache.jena.sparql.engine.binding.BindingFactory; //导入依赖的package包/类
public ValuesClauseBuilder addBinding() {
    elm.getRows().add(BindingFactory.create());
    return this;
}
 

import org.apache.jena.sparql.engine.binding.BindingFactory; //导入依赖的package包/类
protected Node eval(String expression) {
	Expr expr = ExprUtils.parse(expression, prefixes);
	return expr.eval(BindingFactory.root(), env).asNode();
}