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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jasper;

import java.io.File;
import java.util.Map;

import javax.servlet.jsp.tagext.TagLibraryInfo;

import org.apache.jasper.compiler.JspConfig;
import org.apache.jasper.compiler.TagPluginManager;
import org.apache.jasper.compiler.TldLocationsCache;

/**
 * A class to hold all init parameters specific to the JSP engine. 
 *
 * @author Anil K. Vijendran
 * @author Hans Bergsten
 * @author Pierre Delisle
 */
public interface Options {

    /**
     * Returns true if Jasper issues a compilation error instead of a runtime
     * Instantiation error if the class attribute specified in useBean action
     * is invalid.
     */
    public boolean getErrorOnUseBeanInvalidClassAttribute();

    /**
     * Are we keeping generated code around?
     */
    public boolean getKeepGenerated();

    /**
     * Returns true if tag handler pooling is enabled, false otherwise.
     */
    public boolean isPoolingEnabled();

    /**
     * Are we supporting HTML mapped servlets?
     */
    public boolean getMappedFile();

    /**
     * Should we include debug information in compiled class?
     */
    public boolean getClassDebugInfo();

    /**
     * Background compile thread check interval in seconds
     */
    public int getCheckInterval();

    /**
     * Is Jasper being used in development mode?
     */
    public boolean getDevelopment();

    /**
     * Should we include a source fragment in exception messages, which could be displayed
     * to the developer ?
     */
    public boolean getDisplaySourceFragment();

    /**
     * Is the generation of SMAP info for JSR45 debugging suppressed?
     */
    public boolean isSmapSuppressed();

    /**
     * Indicates whether SMAP info for JSR45 debugging should be dumped to a
     * file.
     * Ignored if suppressSmap() is true.
     */
    public boolean isSmapDumped();

    /**
     * Should white spaces between directives or actions be trimmed?
     */
    public boolean getTrimSpaces();

    /**
     * Gets the class-id value that is sent to Internet Explorer when using
     * <jsp:plugin> tags.
     *
     * @return Class-id value
     */
    public String getIeClassId();

    /**
     * What is my scratch dir?
     */
    public File getScratchDir();

    /**
     * What classpath should I use while compiling the servlets
     * generated from JSP files?
     */
    public String getClassPath();

    /**
     * Compiler to use.
     * 
     * 

* If null (the default), the java compiler from Eclipse JDT * project, bundled with Tomcat, will be used. Otherwise, the * javac task from Apache Ant will be used to call an external * java compiler and the value of this option will be passed to it. See * Apache Ant documentation for the possible values. */ public String getCompiler(); /** * The compiler target VM, e.g. 1.1, 1.2, 1.3, 1.4, 1.5 or 1.6. */ public String getCompilerTargetVM(); /** * The compiler source VM, e.g. 1.3, 1.4, 1.5 or 1.6. */ public String getCompilerSourceVM(); /** * Jasper Java compiler class to use. */ public String getCompilerClassName(); /** * The cache for the location of the TLD's * for the various tag libraries 'exposed' * by the web application. * A tag library is 'exposed' either explicitly in * web.xml or implicitly via the uri tag in the TLD * of a taglib deployed in a jar file (WEB-INF/lib). * * @return the instance of the TldLocationsCache * for the web-application. */ public TldLocationsCache getTldLocationsCache(); /** * Java platform encoding to generate the JSP * page servlet. */ public String getJavaEncoding(); /** * The boolean flag to tell Ant whether to fork JSP page compilations. * *

* Is used only when Jasper uses an external java compiler (wrapped through * a javac Apache Ant task). */ public boolean getFork(); /** * Obtain JSP configuration information specified in web.xml. */ public JspConfig getJspConfig(); /** * Is generation of X-Powered-By response header enabled/disabled? */ public boolean isXpoweredBy(); /** * Obtain a Tag Plugin Manager */ public TagPluginManager getTagPluginManager(); /** * Indicates whether text strings are to be generated as char arrays. * * @return true if text strings are to be generated as char * arrays, false otherwise */ public boolean genStringAsCharArray(); /** * Modification test interval. */ public int getModificationTestInterval(); /** * Re-compile on failure. */ public boolean getRecompileOnFail(); /** * Is caching enabled (used for precompilation). */ public boolean isCaching(); /** * The web-application wide cache for the TagLibraryInfo tag library * descriptors, used if {@link #isCaching()} returns true. * *

* Using this cache avoids the cost of repeating the parsing of a tag * library descriptor XML file (performed by TagLibraryInfoImpl.parseTLD). *

* * @return the Map(String uri, TagLibraryInfo tld) instance. */ public Map getCache(); /** * The maximum number of loaded jsps per web-application. If there are more * jsps loaded, they will be unloaded. If unset or less than 0, no jsps * are unloaded. */ public int getMaxLoadedJsps(); /** * The idle time in seconds after which a JSP is unloaded. * If unset or less or equal than 0, no jsps are unloaded. */ public int getJspIdleTimeout(); }




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