Package org.apache.tapestry5.plastic
Interface FieldHandle
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- All Known Implementing Classes:
FieldHandleImpl
public interface FieldHandle
Allows read/write access directly to a field (bypassing accessors). Does not use reflection, even if the field is private (the normal case for Plastic classes).
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.lang.Objectget(java.lang.Object instance)Gets the current value of the field.voidset(java.lang.Object instance, java.lang.Object newValue)Updates the current value of the field.
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Method Detail
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get
java.lang.Object get(java.lang.Object instance)
Gets the current value of the field. If the field is a primitive value, then the primitive will be wrapped.- Throws:
java.lang.NullPointerException- if the instance is nulljava.lang.ClassCastException- if the instance is not the type that contains the field
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set
void set(java.lang.Object instance, java.lang.Object newValue)
Updates the current value of the field. If the field is a primitive value, then the newValue will be unwrapped automatically.- Throws:
java.lang.NullPointerException- if the instance is nulljava.lang.NullPointerException- if the newValue is null and the field is a primitive typejava.lang.ClassCastException- if the instance is not the type that contains the fieldjava.lang.ClassCastException- if the newValue is not assignable to the field type (or not the matching wrapper type for a primitive field)
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