Package jakarta.el
Class ArrayELResolver
- java.lang.Object
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- jakarta.el.ELResolver
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- jakarta.el.ArrayELResolver
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public class ArrayELResolver extends ELResolver
Standard ELResolver for working with arrays.
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Field Summary
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Fields inherited from class jakarta.el.ELResolver
RESOLVABLE_AT_DESIGN_TIME, TYPE
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Constructor Summary
Constructors Constructor Description ArrayELResolver()
Creates a writable instance of the standard array resolver.ArrayELResolver(boolean readOnly)
Creates an instance of the standard array resolver.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Class<?>
getCommonPropertyType(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(ELContext context, java.lang.Object base)
Obtain the feature descriptors for the resolvable properties of the given object.java.lang.Class<?>
getType(ELContext context, java.lang.Object base, java.lang.Object property)
java.lang.Object
getValue(ELContext context, java.lang.Object base, java.lang.Object property)
boolean
isReadOnly(ELContext context, java.lang.Object base, java.lang.Object property)
void
setValue(ELContext context, java.lang.Object base, java.lang.Object property, java.lang.Object value)
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Methods inherited from class jakarta.el.ELResolver
convertToType, invoke
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Constructor Detail
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ArrayELResolver
public ArrayELResolver()
Creates a writable instance of the standard array resolver.
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ArrayELResolver
public ArrayELResolver(boolean readOnly)
Creates an instance of the standard array resolver.- Parameters:
readOnly
-true
if the created instance should be read-only otherwise false.
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Method Detail
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getType
public java.lang.Class<?> getType(ELContext context, java.lang.Object base, java.lang.Object property)
- Specified by:
getType
in classELResolver
- 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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getValue
public java.lang.Object getValue(ELContext context, java.lang.Object base, java.lang.Object property)
- Specified by:
getValue
in classELResolver
- 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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setValue
public void setValue(ELContext context, java.lang.Object base, java.lang.Object property, java.lang.Object value)
- Specified by:
setValue
in classELResolver
- 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(ELContext context, java.lang.Object base, java.lang.Object property)
- Specified by:
isReadOnly
in classELResolver
- 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:
true
if the identified property is read only, otherwisefalse
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getFeatureDescriptors
public java.util.Iterator<java.beans.FeatureDescriptor> getFeatureDescriptors(ELContext context, java.lang.Object base)
Description copied from class:ELResolver
Obtain the feature descriptors for the resolvable properties of the given object.- Specified by:
getFeatureDescriptors
in classELResolver
- 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<?> getCommonPropertyType(ELContext context, java.lang.Object base)
Description copied from class:ELResolver
Obtain the most common type that is acceptable for the given base object.- Specified by:
getCommonPropertyType
in classELResolver
- 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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