Package org.thymeleaf.spring6.expression

Class ThymeleafEvaluationContext

Object
org.springframework.expression.spel.support.StandardEvaluationContext
org.thymeleaf.spring6.expression.ThymeleafEvaluationContext
All Implemented Interfaces:
org.springframework.expression.EvaluationContext, IThymeleafEvaluationContext
public final class ThymeleafEvaluationContext extends org.springframework.expression.spel.support.StandardEvaluationContext implements IThymeleafEvaluationContext

Thymeleaf's basic implementation of the IThymeleafEvaluationContext interface, which in turn extends from Spring's EvaluationContext interface.

This implementation adds Thymeleaf's own property accessors (see PropertyAccessor) for accessing the IContext object in which variables are stored.

Also, this evaluation context (which is usually instanced at the ThymeleafView initialization) links the execution of expressions with the available BeanFactory and ConversionService instances, used during evaluation.

Before executing a Spring EL expression using this evaluation context, it should be enriched with the variables to be made accessible (like #variableName), using a ThymeleafEvaluationContextWrapper object.

Since:
3.0.3
Author:
Daniel Fernández

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final String
    THYMELEAF_EVALUATION_CONTEXT_CONTEXT_VARIABLE_NAME
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    ThymeleafEvaluationContext(org.springframework.context.ApplicationContext applicationContext, org.springframework.core.convert.ConversionService conversionService)
     
    ThymeleafEvaluationContext(org.springframework.context.ApplicationContext applicationContext, org.springframework.core.convert.ConversionService conversionService, Collection<Class<?>> allowedClassOverridesForViews)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    Collection<Class<?>>
    getAllowedClassOverridesForViews()
    Returns the classes that will be allowed to be used in SpEL expressions in views, explicitly overriding the standard set of forbidden classes.
    org.springframework.context.ApplicationContext
    getApplicationContext()
     
    org.thymeleaf.expression.IExpressionObjects
    getExpressionObjects()
     
    boolean
    isVariableAccessRestricted()
     
    Object
    lookupVariable(String name)
     
    void
    setExpressionObjects(org.thymeleaf.expression.IExpressionObjects expressionObjects)
     
    void
    setVariableAccessRestricted(boolean restricted)
     

    Methods inherited from class org.springframework.expression.spel.support.StandardEvaluationContext

    addConstructorResolver, addIndexAccessor, addMethodResolver, addPropertyAccessor, applyDelegatesTo, getBeanResolver, getConstructorResolvers, getIndexAccessors, getMethodResolvers, getOperatorOverloader, getPropertyAccessors, getRootObject, getTypeComparator, getTypeConverter, getTypeLocator, registerFunction, registerFunction, registerMethodFilter, removeConstructorResolver, removeIndexAccessor, removeMethodResolver, removePropertyAccessor, setBeanResolver, setConstructorResolvers, setIndexAccessors, setMethodResolvers, setOperatorOverloader, setPropertyAccessors, setRootObject, setRootObject, setTypeComparator, setTypeConverter, setTypeLocator, setVariable, setVariables

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface org.springframework.expression.EvaluationContext

    assignVariable, getBeanResolver, getConstructorResolvers, getIndexAccessors, getMethodResolvers, getOperatorOverloader, getPropertyAccessors, getRootObject, getTypeComparator, getTypeConverter, getTypeLocator, isAssignmentEnabled, setVariable

  • Field Details

    • THYMELEAF_EVALUATION_CONTEXT_CONTEXT_VARIABLE_NAME

      public static final String THYMELEAF_EVALUATION_CONTEXT_CONTEXT_VARIABLE_NAME
      See Also:

  • Constructor Details

    • ThymeleafEvaluationContext

      public ThymeleafEvaluationContext(org.springframework.context.ApplicationContext applicationContext, org.springframework.core.convert.ConversionService conversionService)

    • ThymeleafEvaluationContext

      public ThymeleafEvaluationContext(org.springframework.context.ApplicationContext applicationContext, org.springframework.core.convert.ConversionService conversionService, Collection<Class<?>> allowedClassOverridesForViews)

  • Method Details

    • getApplicationContext

      public org.springframework.context.ApplicationContext getApplicationContext()

    • getAllowedClassOverridesForViews

      public Collection<Class<?>> getAllowedClassOverridesForViews()

      Returns the classes that will be allowed to be used in SpEL expressions in views, explicitly overriding the standard set of forbidden classes.

      Returns:
      the classes that will be allowed to be used in expressions in views even if forbidden by default.
      Since:
      3.1.4

    • lookupVariable

      public Object lookupVariable(String name)
      Specified by:
      lookupVariable in interface org.springframework.expression.EvaluationContext
      Overrides:
      lookupVariable in class org.springframework.expression.spel.support.StandardEvaluationContext

    • isVariableAccessRestricted

      public boolean isVariableAccessRestricted()
      Specified by:
      isVariableAccessRestricted in interface IThymeleafEvaluationContext

    • setVariableAccessRestricted

      public void setVariableAccessRestricted(boolean restricted)
      Specified by:
      setVariableAccessRestricted in interface IThymeleafEvaluationContext

    • getExpressionObjects

      public org.thymeleaf.expression.IExpressionObjects getExpressionObjects()
      Specified by:
      getExpressionObjects in interface IThymeleafEvaluationContext

    • setExpressionObjects

      public void setExpressionObjects(org.thymeleaf.expression.IExpressionObjects expressionObjects)
      Specified by:
      setExpressionObjects in interface IThymeleafEvaluationContext