Examples of org.jrdf.query.relation.mem.AttributeImpl

org.jrdf.query.relation.mem.AttributeImpl
Implementation of attribute-name:type-name combination. @author Andrew Newman @version $Id: AttributeImpl.java 3169 2009-11-01 08:40:24Z newmana $

        final byte b = tupleInput.readByte();
        Attribute attribute;
        if (b == NORMAL_ATTRIBUTE) {
            AttributeName name = nameBinding.entryToObject(tupleInput);
            NodeType type = typeBinding.entryToObject(tupleInput);
            attribute = new AttributeImpl(name, type);
        } else if (b == NULLARY_ATTRIBUTE) {
            attribute = NullaryAttribute.NULLARY_ATTRIBUTE;
        } else {
            throw new IllegalArgumentException("Cannot read class type: " + b);
        }

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            if (type == null) {
                String literal = variable.getLiteral();
                throw new ParserException(new TIdentifier(literal), "Failed to find variable " +
                    literal + " in where clause. ");
            } else {
                Attribute attribute = new AttributeImpl(variable, type);
                newAttributes.add(attribute);
            }
        }
        return newAttributes;
    }

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        AttributeName existingAttributeName = existingAttribute.getAttributeName();
        NodeType newNodeType = allVariables.get(existingAttributeName);
        if (newNodeType == null) {
            newNodeType = existingAttribute.getType();
        }
        return new AttributeImpl(existingAttributeName, newNodeType);
    }

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        if (attributeName == null) {
            returnValue.put(NULLARY_ATTRIBUTE, value);
        } else {
            NodeType type = namePosMap.get(attributeName);
            type = (type == null) ? new ObjectNodeType() : type;
            Attribute attribute = new AttributeImpl(attributeName, type);
            returnValue.put(attribute, value);
            collector.addConstraints(returnValue);
        }
        return returnValue;
    }

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        avp.put(attribute, value);
    }


    private void createAttributeValuePair(NodeType type, Node anyNode, String variableName) {
        AttributeName attributeName = new VariableName(variableName);
        Attribute att = new AttributeImpl(attributeName, type);
        avp.put(att, anyNode);
    }

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