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JDBC Driver for Google Cloud Spanner

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package org.codehaus.jackson;

/**
 * Interface that those Jackson components that are explicitly versioned will implement.
 * Intention is to allow both plug-in components (custom extensions) and applications and
 * frameworks that use Jackson to detect exact version of Jackson in use.
 * This may be useful for example for ensuring that proper Jackson version is deployed
 * (beyond mechanisms that deployment system may have), as well as for possible
 * workarounds.
 * 
 * @since 1.6
 */
public interface Versioned {
    /**
     * Method called to detect version of the component that implements this interface;
     * returned version should never be null, but may return specific "not available"
     * instance (see {@link Version} for details).
     */
    public Version version();
}