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/*
* QueryValueFetcher.java
*
* Created on March 15, 2002
* @author Daniel Tonn
*/
package com.sun.jdo.spi.persistence.support.sqlstore.query.jqlc;
import java.util.ResourceBundle;
import com.sun.jdo.api.persistence.support.JDOFatalInternalException;
import com.sun.jdo.spi.persistence.support.sqlstore.ValueFetcher;
import com.sun.jdo.spi.persistence.utility.I18NHelper;
/**
* Class wrapping the actual query parameters to make them
* accessible through the ValueFetcher interface.
*/
public class QueryValueFetcher implements ValueFetcher
{
/** I18N support */
protected final static ResourceBundle messages =
I18NHelper.loadBundle(QueryValueFetcher.class);
/** The actual parameter values. */
private Object[] parameters;
/**
* Constructor.
* @param parameters the actual parameter values.
*/
public QueryValueFetcher(Object[] parameters)
{
this.parameters = parameters;
}
/**
* Returns the parameter value for the specified parameter index
* @param whichOne the parameter index
* @return the parameter value
*/
public Object getValue(int whichOne)
{
if (parameters == null || whichOne >= parameters.length)
{
throw new JDOFatalInternalException(I18NHelper.getMessage(messages,
"jqlc.queryvaluefetcher.getvalue.invalidparam", //NOI18N
String.valueOf(whichOne),
String.valueOf((parameters == null) ? 0 : parameters.length)));
}
return parameters[whichOne];
}
}