Proper Oracle data type for Java Object

I am using Hibernate, and I wan开发者_运维百科t one of my column to be mapped into Java Object, something like so..

@Column(name="SPECIAL_COLUMN")
public Object getSpecialColumn() {
    ....
}

The Object could be Integer, BigDecimal, String, or Date. How do I map this to Oracle?

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Since Integer, BigDecimal, Date, and String all implements Serializable, I ended up using Serializable in Java and BLOB in Oracle.., like so..

@Column(name="SPECIAL_COLUMN")
public Serializable getSpecialColumn() {
    ....
}