org.directwebremoting.extend.NonNestedOutboundVariable Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of dwr Show documentation

DWR is easy Ajax for Java. It makes it simple to call Java code directly from Javascript. It gets rid of almost all the boilerplate code between the web browser and your Java code. This version 4.0.2 works with Jakarta Servlet 4.0.2.

There is a newer version: 5.0.0

Show newest version

package org.directwebremoting.extend;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * An {@link OutboundVariable} that we know to be unable to recurse
 * @author Joe Walker [joe at getahead dot ltd dot uk]
 */
public class NonNestedOutboundVariable implements OutboundVariable
{
    /**
     * Create a new NonNestedOutboundVariable
     * @param assignCode ...
     */
    public NonNestedOutboundVariable(String assignCode)
    {
        this.assignCode = assignCode;
    }

    public void incrementReferenceCount()
    {
        referenceCount++;

        if (referenceCount > 1)
        {
            log.warn("Creating JsonString from multiply referenced ArrayJsonOutboundVariable. Recurrsion expected.");
        }
    }

    public String getDeclareCode()
    {
        return "";
    }

    public String getBuildCode()
    {
        return "";
    }

    public String getAssignCode()
    {
        return assignCode;
    }

    public OutboundVariable getReferenceVariable()
    {
        return this;
    }

    @Override
    public String toString()
    {
        return "NonNestedOutboundVariable(" + getAssignCode() + ")";
    }

    /**
     * The variable that we refer to
     */
    private final String assignCode;

    /**
     * By how many objects are we referred to?
     */
    private int referenceCount = 0;

    /**
     * The log stream
     */
    private static final Log log = LogFactory.getLog(NonNestedOutboundVariable.class);
}