Java Code Examples for org.eclipse.rdf4j.query.algebra.Var#setName()

The following examples show how to use org.eclipse.rdf4j.query.algebra.Var#setName() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: QueryVariableNormalizer.java    From rya with Apache License 2.0 6 votes vote down vote up 
@Override
public void meetNAryValueOperator(NAryValueOperator node) {

    List<ValueExpr> oldValues = node.getArguments();
    List<ValueExpr> newValues = Lists.newArrayList();

    for (ValueExpr v : oldValues) {
        if (v instanceof Var) {
            Var var = (Var) v;
            if (!(var.isConstant() && hMap.containsKey(var.getName()))) {
                String val = hMap.get(var.getName());
                if (VarNameUtils.isConstant(val)) {
                    newValues.add(new ValueConstant(valMap.get(val)));
                } else {
                    var.setName(val);
                    newValues.add(var);
                }
            }
        } else {
            newValues.add(v);
        }
    }
    
    node.setArguments(newValues);

}
Example 2
Source File: QueryAlgebraUtil.java    From CostFed with GNU Affero General Public License v3.0 5 votes vote down vote up 
/**
 * Clone the specified variable and attach bindings, moreover change name of variable
 * by appending "_varId" to it.
 * 
 * @param sb
 * @param var
 * @param varNames
 * @param bindings
 * 
 * @return
 */
protected static Var appendVarId(Var var, String varID, Set<String> varNames, BindingSet bindings) {
	Var res = var.clone();
	if (!var.hasValue()) {
		if (bindings.hasBinding(var.getName())) {
			res.setValue( bindings.getValue(var.getName()) );
		} else {
			String newName = var.getName() + "_" + varID;
			varNames.add(newName);
			res.setName(newName);
		}			
	}
	return res;
}
Example 3
Source File: QueryAlgebraUtil.java    From rdf4j with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
/**
 * Clone the specified variable and attach bindings, moreover change name of variable by appending "_varId" to it.
 *
 * @param var
 * @param varID
 * @param varNames
 * @param bindings
 *
 * @return the variable
 */
protected static Var appendVarId(Var var, String varID, Set<String> varNames, BindingSet bindings) {
	Var res = var.clone();
	if (!var.hasValue()) {
		if (bindings.hasBinding(var.getName())) {
			res.setValue(bindings.getValue(var.getName()));
		} else {
			String newName = var.getName() + "_" + varID;
			varNames.add(newName);
			res.setName(newName);
		}
	}
	return res;
}
Example 4
Source File: CopyRule.java    From rya with Apache License 2.0 5 votes vote down vote up 
@Override
public void meet(final Var node) {
    final String oldName = node.getName();
    if (rule.varMap.containsKey(oldName)) {
        node.setName(rule.varMap.get(oldName).getName());
    }
    else {
        if (node.hasValue() || node.equals(SUBJ_VAR) || node.equals(PRED_VAR) || node.equals(OBJ_VAR) || node.equals(CON_VAR)) {
            return;
        }
        node.setName(UNDEFINED_VAR.getName());
    }
}
Example 5
Source File: QueryVariableNormalizer.java    From rya with Apache License 2.0 5 votes vote down vote up 
public void meet(Var var) {
    if (!var.isConstant() && hMap.containsKey(var.getName())) {
        String val = hMap.get(var.getName());
        if (VarNameUtils.isConstant(val)) {
           var.setName(val);
           var.setValue(valMap.get(val));
           var.setAnonymous(true); //TODO this might be a hack -- when are Vars not anonymous?
        } else {
            var.setName(val);
        }
    }
}
Example 6
Source File: QueryVariableNormalizer.java    From rya with Apache License 2.0 5 votes vote down vote up 
@Override
public void meet(Var var) {
    
    if (!(var.getParentNode() instanceof NAryValueOperator)) {
        if (!var.isConstant() && hMap.containsKey(var.getName())) {
            String val = hMap.get(var.getName());
            if (VarNameUtils.isConstant(val)) {
                var.replaceWith(new ValueConstant(valMap.get(val)));
            } else {
                var.setName(val);
            }
        }
    }
}