Example usage for javax.servlet.jsp PageContext APPLICATION

Introduction

In this page you can find the example usage for javax.servlet.jsp PageContext APPLICATION_SCOPE.

Prototype

int APPLICATION_SCOPE

To view the source code for javax.servlet.jsp PageContext APPLICATION_SCOPE.

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Document

Application scope: named reference remains available in the ServletContext until it is reclaimed.

Usage

From source file:org.hyperic.hq.ui.taglib.display.TableTag.java

/**
 * This functionality is borrowed from struts, but I've removed some struts
 * specific features so that this tag can be used both in a struts
 * application, and outside of one./*from  w ww.j  a v a2 s  .c  o  m*/
 * 
 * Locate and return the specified bean, from an optionally specified scope,
 * in the specified page context. If no such bean is found, return
 * <code>null</code> instead.
 * 
 * @param pageContext
 *            Page context to be searched
 * @param name
 *            Name of the bean to be retrieved
 * @param scope
 *            Scope to be searched (page, request, session, application) or
 *            <code>null</code> to use <code>findAttribute()</code> instead
 * 
 * @exception JspException
 *                if an invalid scope name is requested
 */

public Object lookup(PageContext pageContext, String name, String scope) throws JspException {

    Object bean = null;
    if (scope == null)
        bean = pageContext.findAttribute(name);
    else if (scope.equalsIgnoreCase("page"))
        bean = pageContext.getAttribute(name, PageContext.PAGE_SCOPE);
    else if (scope.equalsIgnoreCase("request"))
        bean = pageContext.getAttribute(name, PageContext.REQUEST_SCOPE);
    else if (scope.equalsIgnoreCase("session"))
        bean = pageContext.getAttribute(name, PageContext.SESSION_SCOPE);
    else if (scope.equalsIgnoreCase("application"))
        bean = pageContext.getAttribute(name, PageContext.APPLICATION_SCOPE);
    else {
        Object[] objs = { name, scope };
        if (prop.getProperty("error.msg.cant_find_bean") != null) {
            String msg = MessageFormat.format(prop.getProperty("error.msg.cant_find_bean"), objs);
            throw new JspException(msg);
        } else {
            throw new JspException("Could not find " + name + " in scope " + scope);

        }
    }

    return (bean);
}

From source file:org.rhq.enterprise.gui.legacy.taglib.display.TableTag.java

/**
 * This functionality is borrowed from struts, but I've removed some struts specific features so that this tag can
 * be used both in a struts application, and outside of one.
 *
 * <p/>Locate and return the specified bean, from an optionally specified scope, in the specified page context. If
 * no such bean is found, return <code>null</code> instead.
 *
 * @param  pageContext Page context to be searched
 * @param  name        Name of the bean to be retrieved
 * @param  scope       Scope to be searched (page, request, session, application) or <code>null</code> to use <code>
 *                     findAttribute()</code> instead
 *
 * @throws JspException if an invalid scope name is requested
 *///from w  w  w .  j  av  a 2  s . c  om

public Object lookup(PageContext pageContext, String name, String scope) throws JspException {
    log.trace("looking up: " + name + " in scope: " + scope);

    Object bean;
    if (scope == null) {
        bean = pageContext.findAttribute(name);
    } else if (scope.equalsIgnoreCase("page")) {
        bean = pageContext.getAttribute(name, PageContext.PAGE_SCOPE);
    } else if (scope.equalsIgnoreCase("request")) {
        bean = pageContext.getAttribute(name, PageContext.REQUEST_SCOPE);
    } else if (scope.equalsIgnoreCase("session")) {
        bean = pageContext.getAttribute(name, PageContext.SESSION_SCOPE);
    } else if (scope.equalsIgnoreCase("application")) {
        bean = pageContext.getAttribute(name, PageContext.APPLICATION_SCOPE);
    } else {
        Object[] objs = { name, scope };
        if (prop.getProperty("error.msg.cant_find_bean") != null) {
            String msg = MessageFormat.format(prop.getProperty("error.msg.cant_find_bean"), objs);
            throw new JspException(msg);
        } else {
            throw new JspException("Could not find " + name + " in scope " + scope);
        }
    }

    return (bean);
}

From source file:org.sakaiproject.metaobj.security.control.tag.AuthZMapTag.java

public void setScope(String scope) {
    if (scope.equalsIgnoreCase("page")) {
        this.scope = PageContext.PAGE_SCOPE;
    } else if (scope.equalsIgnoreCase("request")) {
        this.scope = PageContext.REQUEST_SCOPE;
    } else if (scope.equalsIgnoreCase("session")) {
        this.scope = PageContext.SESSION_SCOPE;
    } else if (scope.equalsIgnoreCase("application")) {
        this.scope = PageContext.APPLICATION_SCOPE;
    }// w w w .  j  a  v  a 2s.c  o m

    // TODO: Add error handling?  Needs direction from spec.
}

From source file:org.theospi.portfolio.security.control.tag.AuthZMapTag.java

public void setScope(String scope) {
    if (scope.equalsIgnoreCase("page"))
        this.scope = PageContext.PAGE_SCOPE;
    else if (scope.equalsIgnoreCase("request"))
        this.scope = PageContext.REQUEST_SCOPE;
    else if (scope.equalsIgnoreCase("session"))
        this.scope = PageContext.SESSION_SCOPE;
    else if (scope.equalsIgnoreCase("application"))
        this.scope = PageContext.APPLICATION_SCOPE;

    // TODO: Add error handling?  Needs direction from spec.
}

From source file:us.mn.state.health.lims.taglib.JavascriptValidatorTag.java

/**
 * Returns fully rendered JavaScript.//from   w  ww. j  av  a2 s  .  co  m
 * @since Struts 1.2
 */
protected String renderJavascript() throws JspException {
    StringBuffer results = new StringBuffer();

    ModuleConfig config = TagUtils.getInstance().getModuleConfig(pageContext);
    ValidatorResources resources = (ValidatorResources) pageContext
            .getAttribute(ValidatorPlugIn.VALIDATOR_KEY + config.getPrefix(), PageContext.APPLICATION_SCOPE);

    if (resources == null) {
        throw new JspException("ValidatorResources not found in application scope under key \""
                + ValidatorPlugIn.VALIDATOR_KEY + config.getPrefix() + "\"");
    }

    Locale locale = TagUtils.getInstance().getUserLocale(this.pageContext, null);

    Form form = resources.getForm(locale, formName);

    if ("true".equalsIgnoreCase(dynamicJavascript) && form == null) {
        throw new JspException("No form found under '" + formName + "' in locale '" + locale + "'");
    }

    if (form != null) {
        if ("true".equalsIgnoreCase(dynamicJavascript)) {
            results.append(this.createDynamicJavascript(config, resources, locale, form));

        } else if ("true".equalsIgnoreCase(staticJavascript)) {
            results.append(this.renderStartElement());
            if ("true".equalsIgnoreCase(htmlComment)) {
                results.append(HTML_BEGIN_COMMENT);
            }
        }
    }

    if ("true".equalsIgnoreCase(staticJavascript)) {
        results.append(getJavascriptStaticMethods(resources));
    }

    if (form != null
            && ("true".equalsIgnoreCase(dynamicJavascript) || "true".equalsIgnoreCase(staticJavascript))) {

        results.append(getJavascriptEnd());
    }

    return results.toString();
}

Example usage for javax.servlet.jsp PageContext APPLICATION_SCOPE

Introduction

Prototype

Document

Usage