All Known Implementing Classes:

EmbeddedServletOptions, JspC
```
public interface Options
```
A class to hold all init parameters specific to the JSP engine.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods Deprecated Methods
Modifier and Type	Method	Description
`boolean`	`genStringAsCharArray()`	Indicates whether text strings are to be generated as char arrays.
`java.util.Map<java.lang.String,TagLibraryInfo>`	`getCache()`	The web-application wide cache for the TagLibraryInfo tag library descriptors, used if `isCaching()` returns `true`.
`int`	`getCheckInterval()`	Returns the interval in seconds at which the background compile thread checks for modified JSP files.
`boolean`	`getClassDebugInfo()`	Returns whether debug information is included in compiled classes.
`java.lang.String`	`getClassPath()`	Returns the classpath used by the compiler when compiling generated Servlets.
`java.lang.String`	`getCompiler()`	Compiler to use.
`java.lang.String`	`getCompilerClassName()`	Returns the fully qualified class name of the Jasper Java compiler implementation to use.
`java.lang.String`	`getCompilerSourceVM()`	Returns the source Java VM version for the compiler, such as 1.8.
`java.lang.String`	`getCompilerTargetVM()`	Returns the target Java VM version for the compiler, such as 1.8.
`boolean`	`getDevelopment()`	Main development flag, which enables detailed error reports with sources, as well automatic recompilation of JSPs and tag files.
`boolean`	`getDisplaySourceFragment()`	Returns whether a source fragment should be included in exception messages for debugging.
`boolean`	`getErrorOnUseBeanInvalidClassAttribute()`	Returns true if Jasper issues a compilation error instead of a runtime Instantiation error if the class attribute specified in useBean action is invalid.
`boolean`	`getFork()`	The boolean flag to tell Ant whether to fork JSP page compilations.
`default boolean`	`getGeneratedJavaAddTimestamp()`	Should the container include the time the file was generated in the comments at the start of a Java file generated from a JSP or tag.
`java.lang.String`	`getIeClassId()`	Deprecated. Will be removed in Tomcat 10.1.x
`java.lang.String`	`getJavaEncoding()`	Returns the Java platform character encoding used when generating the JSP page servlet source.
`JspConfig`	`getJspConfig()`	Returns the JSP configuration information as specified in the web.xml deployment descriptor.
`int`	`getJspIdleTimeout()`	Returns the idle timeout for JSP unloading.
`boolean`	`getKeepGenerated()`	Returns whether the generated Java source files should be kept after compilation.
`boolean`	`getMappedFile()`	Returns whether HTML mapped Servlets are supported.
`int`	`getMaxLoadedJsps()`	The maximum number of loaded jsps per web-application.
`int`	`getModificationTestInterval()`	Returns the interval in seconds between modification tests for JSP files.
`boolean`	`getQuoteAttributeEL()`	Returns whether quoting rules from JSP.1.6 are applied to EL expressions in attributes.
`boolean`	`getRecompileOnFail()`	Returns whether the JSP engine should attempt re-compilation when an initial compilation fails.
`java.io.File`	`getScratchDir()`
`boolean`	`getStrictQuoteEscaping()`	Returns whether strict quote escaping is enabled for scriplet expressions.
`TagPluginManager`	`getTagPluginManager()`	Returns the Tag Plugin Manager used for applying tag plugins during JSP compilation.
`TldCache`	`getTldCache()`	The cache that maps URIs, resource paths and parsed TLD files for the various tag libraries 'exposed' by the web application.
`TrimSpacesOption`	`getTrimSpaces()`	Returns the option for trimming whitespace-only template text.
`java.lang.String`	`getUseNonstandardTagOptimizations()`	A string containing a comma-separated list of names to which custom tag implementations should be applied.
`boolean`	`isCaching()`	Returns whether caching is enabled for compiled JSP pages, used for precompilation scenarios.
`boolean`	`isPoolingEnabled()`	Returns whether tag handler pooling is enabled for improved performance.
`boolean`	`isSmapDumped()`	This setting is ignored if suppressSmap() is `true`.
`boolean`	`isSmapSuppressed()`	Returns whether generation of SMAP (Source Map for Debugging) information is suppressed.
`boolean`	`isXpoweredBy()`	Returns whether the X-Powered-By response header should be generated in HTTP responses.

- Method Detail
  - getErrorOnUseBeanInvalidClassAttribute
```
boolean getErrorOnUseBeanInvalidClassAttribute()
```
    Returns true if Jasper issues a compilation error instead of a runtime Instantiation error if the class attribute specified in useBean action is invalid.
    
    Returns:
    
    true to get an error
  - getKeepGenerated
```
boolean getKeepGenerated()
```
    Returns whether the generated Java source files should be kept after compilation.
    
    Returns:
    
    true to keep the generated source
  - isPoolingEnabled
```
boolean isPoolingEnabled()
```
    Returns whether tag handler pooling is enabled for improved performance.
    
    Returns:
    
    true if tag handler pooling is enabled, false otherwise.
  - getMappedFile
```
boolean getMappedFile()
```
    Returns whether HTML mapped Servlets are supported.
    
    Returns:
    
    true if HTML mapped Servlets are supported.
  - getClassDebugInfo
```
boolean getClassDebugInfo()
```
    Returns whether debug information is included in compiled classes.
    
    Returns:
    
    true if debug information in included in compiled classes.
  - getCheckInterval
```
int getCheckInterval()
```
    Returns the interval in seconds at which the background compile thread checks for modified JSP files.
    
    Returns:
    
    background compile thread check interval in seconds
  - getDevelopment
```
boolean getDevelopment()
```
    Main development flag, which enables detailed error reports with sources, as well automatic recompilation of JSPs and tag files. This setting should usually be false when running in production.
    
    Returns:
    
    true if Jasper is in development mode
  - getDisplaySourceFragment
```
boolean getDisplaySourceFragment()
```
    Returns whether a source fragment should be included in exception messages for debugging.
    
    Returns:
    
    true to include a source fragment in exception messages.
  - isSmapSuppressed
```
boolean isSmapSuppressed()
```
    Returns whether generation of SMAP (Source Map for Debugging) information is suppressed.
    
    Returns:
    
    true to suppress generation of SMAP info for JSR45 debugging.
  - isSmapDumped
```
boolean isSmapDumped()
```
    This setting is ignored if suppressSmap() is true.
    
    Returns:
    
    true to write SMAP info for JSR45 debugging to a file.
  - getTrimSpaces
```
TrimSpacesOption getTrimSpaces()
```
    Returns the option for trimming whitespace-only template text.
    
    Returns:
    
    TrimSpacesOption.TRUE to remove template text that consists only of whitespace from the output completely, TrimSpacesOption.SINGLE to replace such template text with a single space, TrimSpacesOption.FALSE to leave such template text unchanged or TrimSpacesOption.EXTENDED to remove template text that consists only of whitespace and to replace any sequence of whitespace and new lines within template text with a single new line.
  - getIeClassId
```
@Deprecated
java.lang.String getIeClassId()
```
    Deprecated.
    Will be removed in Tomcat 10.1.x
    
    Gets the class-id value that is sent to Internet Explorer when using <jsp:plugin> tags.
    
    Returns:
    
    Class-id value
  - getScratchDir
```
java.io.File getScratchDir()
```
    Returns:
    
    the work folder
  - getClassPath
```
java.lang.String getClassPath()
```
    Returns the classpath used by the compiler when compiling generated Servlets.
    
    Returns:
    
    the classpath used to compile generated Servlets
  - getCompiler
```
java.lang.String getCompiler()
```
    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.
    
    Returns:
    
    the compiler name
  - getCompilerTargetVM
```
java.lang.String getCompilerTargetVM()
```
    Returns the target Java VM version for the compiler, such as 1.8.
    
    Returns:
    
    the compiler target VM, e.g. 1.8.
  - getCompilerSourceVM
```
java.lang.String getCompilerSourceVM()
```
    Returns the source Java VM version for the compiler, such as 1.8.
    
    Returns:
    
    the compiler source VM, e.g. 1.8.
  - getCompilerClassName
```
java.lang.String getCompilerClassName()
```
    Returns the fully qualified class name of the Jasper Java compiler implementation to use.
    
    Returns:
    
    Jasper Java compiler class to use.
  - getTldCache
```
TldCache getTldCache()
```
    The cache that maps URIs, resource paths and parsed TLD files 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).
    
    Returns:
    
    the instance of the TldCache for the web-application.
  - getJavaEncoding
```
java.lang.String getJavaEncoding()
```
    Returns the Java platform character encoding used when generating the JSP page servlet source.
    
    Returns:
    
    Java platform encoding to generate the JSP page servlet.
  - getFork
```
boolean getFork()
```
    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).
    
    Returns:
    
    true to fork a process during compilation
  - getJspConfig
```
JspConfig getJspConfig()
```
    Returns the JSP configuration information as specified in the web.xml deployment descriptor.
    
    Returns:
    
    JSP configuration information specified in web.xml.
  - isXpoweredBy
```
boolean isXpoweredBy()
```
    Returns whether the X-Powered-By response header should be generated in HTTP responses.
    
    Returns:
    
    true to generate a X-Powered-By response header.
  - getTagPluginManager
```
TagPluginManager getTagPluginManager()
```
    Returns the Tag Plugin Manager used for applying tag plugins during JSP compilation.
    
    Returns:
    
    a Tag Plugin Manager
  - genStringAsCharArray
```
boolean genStringAsCharArray()
```
    Indicates whether text strings are to be generated as char arrays.
    
    Returns:
    
    true if text strings are to be generated as char arrays, false otherwise
  - getModificationTestInterval
```
int getModificationTestInterval()
```
    Returns the interval in seconds between modification tests for JSP files.
    
    Returns:
    
    modification test interval in seconds.
  - getRecompileOnFail
```
boolean getRecompileOnFail()
```
    Returns whether the JSP engine should attempt re-compilation when an initial compilation fails.
    
    Returns:
    
    true if re-compile will occur on a failure.
  - isCaching
```
boolean isCaching()
```
    Returns whether caching is enabled for compiled JSP pages, used for precompilation scenarios.
    
    Returns:
    
    true if caching is enabled (used for precompilation).
  - getCache
```
java.util.Map<java.lang.String,TagLibraryInfo> getCache()
```
    The web-application wide cache for the TagLibraryInfo tag library descriptors, used if isCaching() returns true.
    Using this cache avoids the cost of repeating the parsing of a tag library descriptor XML file (performed by TagLibraryInfoImpl.parseTLD).
    
    Returns:
    
    the Map(String uri, TagLibraryInfo tld) instance.
  - getMaxLoadedJsps
```
int getMaxLoadedJsps()
```
    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.
    
    Returns:
    
    The JSP count
  - getJspIdleTimeout
```
int getJspIdleTimeout()
```
    Returns the idle timeout for JSP unloading.
    
    Returns:
    
    the idle time in seconds after which a JSP is unloaded. If unset or less or equal than 0, no jsps are unloaded.
  - getStrictQuoteEscaping
```
boolean getStrictQuoteEscaping()
```
    Returns whether strict quote escaping is enabled for scriplet expressions.
    
    Returns:
    
    true if the quote escaping required by section JSP.1.6 of the JSP specification should be applied to scriplet expression.
  - getQuoteAttributeEL
```
boolean getQuoteAttributeEL()
```
    Returns whether quoting rules from JSP.1.6 are applied to EL expressions in attributes.
    
    Returns:
    
    true if EL expressions used within attributes should have the quoting rules in JSP.1.6 applied to the expression.
  - getGeneratedJavaAddTimestamp
```
default boolean getGeneratedJavaAddTimestamp()
```
    Should the container include the time the file was generated in the comments at the start of a Java file generated from a JSP or tag. Defaults to true.
    
    Returns:
    
    true to include the timestamp, otherwise don't include it
  - getUseNonstandardTagOptimizations
```
java.lang.String getUseNonstandardTagOptimizations()
```
    A string containing a comma-separated list of names to which custom tag implementations should be applied. Unknown or unused tag entries are harmless. Generally defined via an init parameter on the JspServlet.
    
    Returns:
    
    which tags to use

Interface Options

Method Summary

Method Detail

getErrorOnUseBeanInvalidClassAttribute

getKeepGenerated

isPoolingEnabled

getMappedFile

getClassDebugInfo

getCheckInterval

getDevelopment

getDisplaySourceFragment

isSmapSuppressed

isSmapDumped

getTrimSpaces

getIeClassId

getScratchDir

getClassPath

getCompiler

getCompilerTargetVM

getCompilerSourceVM

getCompilerClassName

getTldCache

getJavaEncoding

getFork

getJspConfig

isXpoweredBy

getTagPluginManager

genStringAsCharArray

getModificationTestInterval

getRecompileOnFail

isCaching

getCache

getMaxLoadedJsps

getJspIdleTimeout

getStrictQuoteEscaping

getQuoteAttributeEL

getGeneratedJavaAddTimestamp

getUseNonstandardTagOptimizations