Package jakarta.servlet.jsp.el
Class ImplicitObjectELResolver
- java.lang.Object
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- jakarta.el.ELResolver
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- jakarta.servlet.jsp.el.ImplicitObjectELResolver
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public class ImplicitObjectELResolver extends jakarta.el.ELResolverProvides resolution in EL for the implicit variables of a JSP page.- Since:
- JSP 2.1
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Constructor Summary
Constructors Constructor Description ImplicitObjectELResolver()Creates an instance of the implicit object resolver for EL.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Class<java.lang.String>getCommonPropertyType(jakarta.el.ELContext context, java.lang.Object base)Obtain the most common type that is acceptable for the given base object.java.util.Iterator<java.beans.FeatureDescriptor>getFeatureDescriptors(jakarta.el.ELContext context, java.lang.Object base)Obtain the feature descriptors for the resolvable properties of the given object.java.lang.Class<?>getType(jakarta.el.ELContext context, java.lang.Object base, java.lang.Object property)java.lang.ObjectgetValue(jakarta.el.ELContext context, java.lang.Object base, java.lang.Object property)booleanisReadOnly(jakarta.el.ELContext context, java.lang.Object base, java.lang.Object property)voidsetValue(jakarta.el.ELContext context, java.lang.Object base, java.lang.Object property, java.lang.Object value)
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Method Detail
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getValue
public java.lang.Object getValue(jakarta.el.ELContext context, java.lang.Object base, java.lang.Object property)- Specified by:
getValuein classjakarta.el.ELResolver- Parameters:
context- The EL context for this evaluationbase- The base object on which the property is to be foundproperty- The property whose value is to be returned- Returns:
- the value of the provided property
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getType
public java.lang.Class<?> getType(jakarta.el.ELContext context, java.lang.Object base, java.lang.Object property)- Specified by:
getTypein classjakarta.el.ELResolver- Parameters:
context- The EL context for this evaluationbase- The base object on which the property is to be foundproperty- The property whose type is to be returned- Returns:
- the type of the provided property
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setValue
public void setValue(jakarta.el.ELContext context, java.lang.Object base, java.lang.Object property, java.lang.Object value)- Specified by:
setValuein classjakarta.el.ELResolver- Parameters:
context- The EL context for this evaluationbase- The base object on which the property is to be foundproperty- The property whose value is to be setvalue- The value to set the property to
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isReadOnly
public boolean isReadOnly(jakarta.el.ELContext context, java.lang.Object base, java.lang.Object property)- Specified by:
isReadOnlyin classjakarta.el.ELResolver- Parameters:
context- The EL context for this evaluationbase- The base object on which the property is to be foundproperty- The property to be checked for read only status- Returns:
trueif the identified property is read only, otherwisefalse
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getFeatureDescriptors
public java.util.Iterator<java.beans.FeatureDescriptor> getFeatureDescriptors(jakarta.el.ELContext context, java.lang.Object base)Description copied from class:jakarta.el.ELResolverObtain the feature descriptors for the resolvable properties of the given object.- Specified by:
getFeatureDescriptorsin classjakarta.el.ELResolver- Parameters:
context- The context in which the examination takes placebase- The object to examine- Returns:
- An iterator, possibly empty, of feature descriptors of the given object
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getCommonPropertyType
public java.lang.Class<java.lang.String> getCommonPropertyType(jakarta.el.ELContext context, java.lang.Object base)Description copied from class:jakarta.el.ELResolverObtain the most common type that is acceptable for the given base object.- Specified by:
getCommonPropertyTypein classjakarta.el.ELResolver- Parameters:
context- The context in which the examination takes placebase- The object to examine- Returns:
- {code null} if the most common type cannot be determine, otherwise the most common type
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