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

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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);
}