Class ValueBindingValueExpressionAdapter
- All Implemented Interfaces:
StateHolder
,Serializable
public class ValueBindingValueExpressionAdapter extends ValueBinding implements StateHolder, Serializable
Wrap a ValueExpression instance and expose it as a ValueBinding
- Author:
- Jacob Hookom
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description ValueBindingValueExpressionAdapter()
ValueBindingValueExpressionAdapter(jakarta.el.ValueExpression valueExpression)
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Method Summary
Modifier and Type Method Description boolean
equals(Object other)
String
getExpressionString()
Return the (possiblynull
) expression String, including the delimiters, from which thisValueBinding
was built.Class
getType(FacesContext context)
Return the type of the property represented by thisValueBinding
, relative to the specifiedFacesContext
.Object
getValue(FacesContext context)
Return the value of the property represented by thisValueBinding
, relative to the specifiedFacesContext
.jakarta.el.ValueExpression
getWrapped()
int
hashCode()
boolean
isReadOnly(FacesContext context)
Returntrue
if the specified property of the specified property is known to be immutable; otherwise, returnfalse
.boolean
isTransient()
If true, the Object implementing this interface must not participate in state saving or restoring.void
restoreState(FacesContext context, Object state)
Perform any processing required to restore the state from the entries in the state Object.Object
saveState(FacesContext context)
Gets the state of the instance as aSerializable
Object.void
setTransient(boolean tranzient)
Denotes whether or not the Object implementing this interface must or must not participate in state saving or restoring.void
setValue(FacesContext context, Object value)
Set the value of the property represented by thisValueBinding
, relative to the specifiedFacesContext
.
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Constructor Details
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ValueBindingValueExpressionAdapter
public ValueBindingValueExpressionAdapter() -
ValueBindingValueExpressionAdapter
public ValueBindingValueExpressionAdapter(jakarta.el.ValueExpression valueExpression)
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Method Details
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getExpressionString
Description copied from class:ValueBinding
Return the (possibly
null
) expression String, including the delimiters, from which thisValueBinding
was built.- Overrides:
getExpressionString
in classValueBinding
- Returns:
- the expression string
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getType
Description copied from class:ValueBinding
Return the type of the property represented by this
ValueBinding
, relative to the specifiedFacesContext
.- Specified by:
getType
in classValueBinding
- Parameters:
context
-FacesContext
for the current request- Returns:
- the Java type of this expression
- Throws:
EvaluationException
- if an exception is thrown while getting the description of the property (the thrown exception must be included as thecause
property of this exception)PropertyNotFoundException
- if a specified property name does not exist
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getValue
Description copied from class:ValueBinding
Return the value of the property represented by this
ValueBinding
, relative to the specifiedFacesContext
.- Specified by:
getValue
in classValueBinding
- Parameters:
context
-FacesContext
for the current request- Returns:
- the value of this expression
- Throws:
EvaluationException
- if an exception is thrown while getting the value (the thrown exception must be included as thecause
property of this exception)PropertyNotFoundException
- if a specified property name does not exist, or is not readable
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isReadOnly
public boolean isReadOnly(FacesContext context) throws EvaluationException, PropertyNotFoundExceptionDescription copied from class:ValueBinding
Return
true
if the specified property of the specified property is known to be immutable; otherwise, returnfalse
.- Specified by:
isReadOnly
in classValueBinding
- Parameters:
context
-FacesContext
for the current request- Returns:
- whether or not this expression is read only
- Throws:
EvaluationException
- if an exception is thrown while getting the description of the property (the thrown exception must be included as thecause
property of this exception)PropertyNotFoundException
- if a specified property name does not exist
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setValue
public void setValue(FacesContext context, Object value) throws EvaluationException, PropertyNotFoundExceptionDescription copied from class:ValueBinding
Set the value of the property represented by this
ValueBinding
, relative to the specifiedFacesContext
.- Specified by:
setValue
in classValueBinding
- Parameters:
context
-FacesContext
for the current requestvalue
- The new value to be set- Throws:
EvaluationException
- if an exception is thrown while setting the value (the thrown exception must be included as thecause
property of this exception)PropertyNotFoundException
- if a specified property name does not exist, or is not writeable
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isTransient
public boolean isTransient()Description copied from interface:StateHolder
If true, the Object implementing this interface must not participate in state saving or restoring.
- Specified by:
isTransient
in interfaceStateHolder
- Returns:
true
if transient,false
otherwise.
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setTransient
public void setTransient(boolean tranzient)Description copied from interface:StateHolder
Denotes whether or not the Object implementing this interface must or must not participate in state saving or restoring.
- Specified by:
setTransient
in interfaceStateHolder
- Parameters:
tranzient
- boolean passtrue
if this Object will not participate in state saving or restoring, otherwise passfalse
.
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saveState
Description copied from interface:StateHolder
Gets the state of the instance as a
Serializable
Object.If the class that implements this interface has references to instances that implement StateHolder (such as a
UIComponent
with event handlers, validators, etc.) this method must call theStateHolder.saveState(jakarta.faces.context.FacesContext)
method on all those instances as well. This method must not save the state of children and facets. That is done via theStateManager
This method must not alter the state of the implementing object. In other words, after executing this code:
Object state = component.saveState(facesContext);
component
should be the same as before executing it.The return from this method must be
Serializable
- Specified by:
saveState
in interfaceStateHolder
- Parameters:
context
- the Faces context.- Returns:
- the saved state.
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restoreState
Description copied from interface:StateHolder
Perform any processing required to restore the state from the entries in the state Object.
If the class that implements this interface has references to instances that also implement StateHolder (such as a
UIComponent
with event handlers, validators, etc.) this method must call theStateHolder.restoreState(jakarta.faces.context.FacesContext, java.lang.Object)
method on all those instances as well.If the
state
argument isnull
, take no action and return.- Specified by:
restoreState
in interfaceStateHolder
- Parameters:
context
- the Faces context.state
- the state.
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equals
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hashCode
public int hashCode() -
getWrapped
public jakarta.el.ValueExpression getWrapped()
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