Interface ELExpressionParser

All Known Implementing Classes:

InterpretingELExpressionParser

public interface ELExpressionParser

Creates the expressions that were not compiled at compilation time.

The compiled expressions are the fast path: they are parsed, type checked and turned into Java source when the annotation processor runs. An implementation of this interface is only consulted for the expressions that are not known at compilation time, which is the case when an expression string is built at runtime. When no implementation is on the classpath such an expression cannot be created.

Since:

1.0

Author:

Denis Stepanov

See Also:

• CompiledExpressionFactory

Method Summary

Modifier and Type	Method	Description
jakarta.el.MethodExpression	createMethodExpression(@Nullable jakarta.el.ELContext context, String expression, Class<?> expectedReturnType, Class<?>[] expectedParamTypes)	Parses a method expression.
jakarta.el.ValueExpression	createValueExpression(@Nullable jakarta.el.ELContext context, String expression, Class<?> expectedType)	Parses a value expression.

Method Details

createValueExpression

jakarta.el.ValueExpression createValueExpression(@Nullable jakarta.el.ELContext context,
 String expression,
 Class<?> expectedType)

Parses a value expression.

Parameters:

context - The context the expression is created for, can be null

expression - The expression

expectedType - The expected type of the evaluation result

Returns:

The value expression

createMethodExpression

jakarta.el.MethodExpression createMethodExpression(@Nullable jakarta.el.ELContext context,
 String expression,
 Class<?> expectedReturnType,
 Class<?>[] expectedParamTypes)

Parses a method expression.

Parameters:

context - The context the expression is created for, can be null

expression - The expression

expectedReturnType - The expected return type

expectedParamTypes - The expected parameter types

Returns:

The method expression