Package org.apache.jasper.compiler
Interface ELInterpreter
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- All Known Implementing Classes:
ELInterpreterFactory.DefaultELInterpreter
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
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.lang.String
interpreterCall(JspCompilationContext context, boolean isTagFile, java.lang.String expression, java.lang.Class<?> expectedType, java.lang.String fnmapvar)
Returns the string representing the code that will be inserted into the servlet generated for JSP.
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Method Detail
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interpreterCall
java.lang.String interpreterCall(JspCompilationContext context, boolean isTagFile, java.lang.String expression, java.lang.Class<?> expectedType, java.lang.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
-true
if 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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