Package org.apache.jasper.compiler
Interface ELInterpreter
- All Known Implementing Classes:
ELInterpreterFactory.DefaultELInterpreter,ELInterpreterTagSetters
public interface ELInterpreter
Defines the interface for the expression language interpreter. This allows users to provide custom EL interpreter
implementations that can optimise EL processing for an application by , for example, performing code generation for
simple expressions.
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Method Summary
Modifier and TypeMethodDescriptioninterpreterCall(JspCompilationContext context, boolean isTagFile, String expression, Class<?> expectedType, String fnmapvar) Returns the string representing the code that will be inserted into the servlet generated for JSP.
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Method Details
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interpreterCall
String interpreterCall(JspCompilationContext context, boolean isTagFile, String expression, Class<?> expectedType, String fnmapvar) Returns the string representing the code that will be inserted into the servlet generated for JSP. The default implementation creates a call toPageContextImpl.proprietaryEvaluate(String, Class, javax.servlet.jsp.PageContext, org.apache.jasper.runtime.ProtectedFunctionMapper)but other implementations may produce more optimised code.- Parameters:
context- The compilation contextisTagFile-trueif in a tag file rather than a JSPexpression- a String containing zero or more "${}" expressionsexpectedType- the expected type of the interpreted resultfnmapvar- Variable pointing to a function map.- Returns:
- a String representing a call to the EL interpreter.
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