Package org.apache.commons.jelly.tags.ojb

Source Code of org.apache.commons.jelly.tags.ojb.StoreTag

/*
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package org.apache.commons.jelly.tags.ojb;

import ojb.broker.PersistenceBroker;
import ojb.broker.PersistenceBrokerException;
import ojb.broker.PersistenceBrokerFactory;

import org.apache.commons.jelly.JellyContext;
import org.apache.commons.jelly.JellyException;
import org.apache.commons.jelly.TagSupport;
import org.apache.commons.jelly.XMLOutput;

/**
* <p>This Store tag will store the given object in ObjectBridge using
* the given broker or it will use the parent broker tags broker instance.</p>
*
* @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
* @version $Revision: 1.4 $
*/
public class StoreTag extends TagSupport {
   
    /** the value to persist */
    private Object value;
   
    /** The persistence broker instance */
    private PersistenceBroker broker;
   
    public StoreTag() {
    }


    // Tag interface
    //-------------------------------------------------------------------------
    public void doTag(XMLOutput output) throws Exception {
        if ( value == null ) {
            throw new JellyException( "No value is supplied!" );
        }
        getBroker().store( value );
    }

    // Properties
    //-------------------------------------------------------------------------               

    /** Sets the value to be persisted */
    public void setValue(Object value) {
        this.value = value;
    }   
   
    /** @return the persistence broker instance */
    public PersistenceBroker getBroker() {
        if (broker == null) {
            BrokerTag brokerTag = (BrokerTag) findAncestorWithClass( BrokerTag.class );
            if ( brokerTag != null ) {
                broker = brokerTag.getBroker();
            }
            else {
                broker = (PersistenceBroker) context.getVariable(
                    "org.apache.commons.jelly.ojb.Broker"
                );
            }
        }
        return broker;
    }
   
    /** Sets the persistence broker instance */
    public void setBroker(PersistenceBroker broker) {
        this.broker = broker;
    }   
}
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