Class AbstractTuple

src/org/apache/pig/data/AbstractTuple.java:31–75

This class provides a convenient base for Tuple implementations. This makes it easier to provide default implementations as the Tuple interface is evolved.

 * to provide default implementations as the Tuple interface is evolved.
 */
public abstract class AbstractTuple implements Tuple {
    @Override
    public Iterator<Object> iterator() {
        return getAll().iterator();
    }

    @Override
    public String toString() {
        return TupleFormat.format(this);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String toDelimitedString(String delim) throws ExecException {
        return Joiner.on(delim).useForNull("").join(this);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public byte getType(int fieldNum) throws ExecException {
        return DataType.findType(get(fieldNum));
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean isNull(int fieldNum) throws ExecException {
        return (get(fieldNum) == null);
    }

    @Override
    public boolean equals(Object other) {
        return (compareTo(other) == 0);
    }

    @Override
    public void reference(Tuple t) {
        throw new RuntimeException("Tuple#reference(Tuple) is deprecated and should not be used");
    }
}