sqlnullcheckedresultset.java

实现了从Google

    public int getNullInt() {
        return this.nullInt;
    }

    /**
     * Returns the value when a SQL null is encountered as the result of
     * invoking a <code>getLong</code> method.
     *
     * @return the value
     */
    public long getNullLong() {
        return this.nullLong;
    }

    /**
     * Returns the value when a SQL null is encountered as the result of
     * invoking a <code>getObject</code> method.
     *
     * @return the value
     */
    public Object getNullObject() {
        return this.nullObject;
    }

    /**
     * Returns the value when a SQL null is encountered as the result of
     * invoking a <code>getRef</code> method.
     *
     * @return the value
     */
    public Ref getNullRef() {
        return this.nullRef;
    }

    /**
     * Returns the value when a SQL null is encountered as the result of
     * invoking a <code>getShort</code> method.
     *
     * @return the value
     */
    public short getNullShort() {
        return this.nullShort;
    }

    /**
     * Returns the value when a SQL null is encountered as the result of
     * invoking a <code>getString</code> method.
     *
     * @return the value
     */
    public String getNullString() {
        return this.nullString;
    }

    /**
     * Returns the value when a SQL null is encountered as the result of
     * invoking a <code>getTime</code> method.
     *
     * @return the value
     */
    public Time getNullTime() {
        return this.nullTime;
    }

    /**
     * Returns the value when a SQL null is encountered as the result of
     * invoking a <code>getTimestamp</code> method.
     *
     * @return the value
     */
    public Timestamp getNullTimestamp() {
        return this.nullTimestamp;
    }

    /**
     * Returns the value when a SQL null is encountered as the result of
     * invoking a <code>getURL</code> method.
     *
     * @return the value
     */
    public URL getNullURL() {
        return this.nullURL;
    }

    /**
     * Intercepts calls to <code>get*</code> methods and calls the appropriate
     * <code>getNull*</code> method if the <code>ResultSet</code> returned
     * <code>null</code>.
     * 
     * @throws Throwable
     * @see java.lang.reflect.InvocationHandler#invoke(java.lang.Object, java.lang.reflect.Method, java.lang.Object[])
     */
    public Object invoke(Object proxy, Method method, Object[] args)
        throws Throwable {

        Object result = method.invoke(this.rs, args);

        Method nullMethod = (Method) nullMethods.get(method.getName());

        // Check nullMethod != null first so that we don't call wasNull()
        // before a true getter method was invoked on the ResultSet.
        return (nullMethod != null && this.rs.wasNull())
            ? nullMethod.invoke(this, null)
            : result;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getAsciiStream</code> method.
     *
     * @param nullAsciiStream the value
     */
    public void setNullAsciiStream(InputStream nullAsciiStream) {
        this.nullAsciiStream = nullAsciiStream;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getBigDecimal</code> method.
     *
     * @param nullBigDecimal the value
     */
    public void setNullBigDecimal(BigDecimal nullBigDecimal) {
        this.nullBigDecimal = nullBigDecimal;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getBinaryStream</code> method.
     *
     * @param nullBinaryStream the value
     */
    public void setNullBinaryStream(InputStream nullBinaryStream) {
        this.nullBinaryStream = nullBinaryStream;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getBlob</code> method.
     *
     * @param nullBlob the value
     */
    public void setNullBlob(Blob nullBlob) {
        this.nullBlob = nullBlob;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getBoolean</code> method.
     *
     * @param nullBoolean the value
     */
    public void setNullBoolean(boolean nullBoolean) {
        this.nullBoolean = nullBoolean;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getByte</code> method.
     *
     * @param nullByte the value
     */
    public void setNullByte(byte nullByte) {
        this.nullByte = nullByte;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getBytes</code> method.
     *
     * @param nullBytes the value
     */
    public void setNullBytes(byte[] nullBytes) {
        this.nullBytes = nullBytes;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getCharacterStream</code> method.
     *
     * @param nullCharacterStream the value
     */
    public void setNullCharacterStream(Reader nullCharacterStream) {
        this.nullCharacterStream = nullCharacterStream;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getClob</code> method.
     *
     * @param nullClob the value
     */
    public void setNullClob(Clob nullClob) {
        this.nullClob = nullClob;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getDate</code> method.
     *
     * @param nullDate the value
     */
    public void setNullDate(Date nullDate) {
        this.nullDate = nullDate;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getDouble</code> method.
     *
     * @param nullDouble the value
     */
    public void setNullDouble(double nullDouble) {
        this.nullDouble = nullDouble;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getFloat</code> method.
     *
     * @param nullFloat the value
     */
    public void setNullFloat(float nullFloat) {
        this.nullFloat = nullFloat;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getInt</code> method.
     *
     * @param nullInt the value
     */
    public void setNullInt(int nullInt) {
        this.nullInt = nullInt;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getLong</code> method.
     *
     * @param nullLong the value
     */
    public void setNullLong(long nullLong) {
        this.nullLong = nullLong;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getObject</code> method.
     *
     * @param nullObject the value
     */
    public void setNullObject(Object nullObject) {
        this.nullObject = nullObject;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getRef</code> method.
     *
     * @param nullRef the value
     */
    public void setNullRef(Ref nullRef) {
        this.nullRef = nullRef;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getShort</code> method.
     *
     * @param nullShort the value
     */
    public void setNullShort(short nullShort) {
        this.nullShort = nullShort;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getString</code> method.
     *
     * @param nullString the value
     */
    public void setNullString(String nullString) {
        this.nullString = nullString;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getTime</code> method.
     *
     * @param nullTime the value
     */
    public void setNullTime(Time nullTime) {
        this.nullTime = nullTime;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getTimestamp</code> method.
     *
     * @param nullTimestamp the value
     */
    public void setNullTimestamp(Timestamp nullTimestamp) {
        this.nullTimestamp = nullTimestamp;
    }

    /**
     * Sets the value to return when a SQL null is encountered as the result of
     * invoking a <code>getURL</code> method.
     *
     * @param nullURL the value
     */
    public void setNullURL(URL nullURL) {
        this.nullURL = nullURL;
    }

}