import com.hp.hpl.jena.sparql.engine.binding.BindingHashMap; //导入依赖的package包/类
public Binding makeBinding(ResultRow row) {
	if (conditionColumn != null) {
		String value = row.get(conditionColumn);
		if (value == null || "false".equals(value) || "0".equals(value) || "".equals(value)) {
			return null;
		}
	}
	BindingMap result = new BindingHashMap();
	for (Var variableName: nodeMakers.keySet()) {
		Node node = nodeMakers.get(variableName).makeNode(row);
		if (node == null) {
			return null;
		}
		result.add(Var.alloc(variableName), node);
	}
	return result;
}
 

import com.hp.hpl.jena.sparql.engine.binding.BindingHashMap; //导入依赖的package包/类
public Binding makeBinding(ResultRow row) {
	if (condition != null) {
		String value = row.get(condition);
		if (value == null || "false".equals(value) || "0".equals(value) || "".equals(value)) {
			return null;
		}
	}
	BindingMap result = new BindingHashMap();
	for (Var variableName: nodeMakers.keySet()) {
		Node node = nodeMakers.get(variableName).makeNode(row);
		if (node == null) {
			return null;
		}
		result.add(Var.alloc(variableName), node);
	}
	return result;
}
 

import com.hp.hpl.jena.sparql.engine.binding.BindingHashMap; //导入依赖的package包/类
private void materialize(Table table, List<Var> variables) {
    HashSet<Binding> newRows = new HashSet<Binding>();
    Iterator<Binding> qIter = table.rows();
	while (qIter.hasNext()) {
		Binding binding = qIter.next();
		BindingHashMap newBinding = new BindingHashMap();
		for (Var var : variables) {
			if (binding.contains(var)) {
				newBinding.add(var, binding.get(var));
				if (!vars.contains(var))  vars.add(var);
			}
		}
		newRows.add(newBinding);
	}
	rows = new ArrayList<Binding>(newRows);
}