public abstract class ValueExpression extends Expression
| Constructor and Description | 
|---|
| ValueExpression() | 
| Modifier and Type | Method and Description | 
|---|---|
| abstract Class<?> | getExpectedType() | 
| abstract Class<?> | getType(ELContext context) | 
| abstract Object | getValue(ELContext context) | 
| ValueReference | getValueReference(ELContext context) | 
| abstract boolean | isReadOnly(ELContext context) | 
| abstract void | setValue(ELContext context,
        Object value) | 
equals, getExpressionString, hashCode, isLiteralTextpublic abstract Object getValue(ELContext context)
context - The EL context for this evaluationNullPointerException - If the supplied context is nullPropertyNotFoundException - If a property/variable resolution failed because no match
              was found or a match was found but was not readableELException - Wraps any exception throw whilst resolving a property or
              variablepublic abstract void setValue(ELContext context, Object value)
context - The EL context for this evaluationvalue - The value to set the property to which this value
                expression refersNullPointerException - If the supplied context is nullPropertyNotFoundException - If a property/variable resolution failed because no match
              was foundPropertyNotWritableException - If a property/variable resolution failed because a match was
              found but was not writableELException - Wraps any exception throw whilst resolving a property or
              variablepublic abstract boolean isReadOnly(ELContext context)
context - The EL context for this evaluationtrue if this expression is read only otherwise
         falseNullPointerException - If the supplied context is nullPropertyNotFoundException - If a property/variable resolution failed because no match
              was found or a match was found but was not readableELException - Wraps any exception throw whilst resolving a property or
              variablepublic abstract Class<?> getType(ELContext context)
context - The EL context for this evaluationNullPointerException - If the supplied context is nullPropertyNotFoundException - If a property/variable resolution failed because no match
              was found or a match was found but was not readableELException - Wraps any exception throw whilst resolving a property or
              variablepublic abstract Class<?> getExpectedType()
public ValueReference getValueReference(ELContext context)
context - The EL context for this evaluationnullCopyright © 2000-2020 Apache Software Foundation. All Rights Reserved.