Druid/src/main/java/com/alibaba/druid/pool/WrapperAdapter.java

package com.alibaba.druid.pool;

import java.sql.SQLException;
import java.sql.Wrapper;

public class WrapperAdapter implements Wrapper {

    public WrapperAdapter(){
    }

    @Override
    public boolean isWrapperFor(Class<?> iface) throws SQLException {
        if (iface == null) {
            return false;
        }

        if (iface.isInstance(this)) {
            return true;
        }

        return false;
    }

    @SuppressWarnings("unchecked")
    @Override
    public <T> T unwrap(Class<T> iface) throws SQLException {
        if (iface == null) {
            return null;
        }

        if (iface.isInstance(this)) {
            return (T) this;
        }

        return null;
    }

}