Package org.apache.jasper.el
Class JspValueExpression
- java.lang.Object
-
- javax.el.Expression
-
- javax.el.ValueExpression
-
- org.apache.jasper.el.JspValueExpression
-
- All Implemented Interfaces:
Externalizable
,Serializable
public final class JspValueExpression extends ValueExpression implements Externalizable
Wrapper for providing context to ValueExpressions- Author:
- Jacob Hookom
- See Also:
- Serialized Form
-
-
Constructor Summary
Constructors Constructor Description JspValueExpression()
JspValueExpression(String mark, ValueExpression target)
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(Object obj)
Class<?>
getExpectedType()
String
getExpressionString()
Class<?>
getType(ELContext context)
Object
getValue(ELContext context)
int
hashCode()
boolean
isLiteralText()
boolean
isReadOnly(ELContext context)
void
readExternal(ObjectInput in)
void
setValue(ELContext context, Object value)
void
writeExternal(ObjectOutput out)
-
Methods inherited from class javax.el.ValueExpression
getValueReference
-
-
-
-
Constructor Detail
-
JspValueExpression
public JspValueExpression()
-
JspValueExpression
public JspValueExpression(String mark, ValueExpression target)
-
-
Method Detail
-
getExpectedType
public Class<?> getExpectedType()
- Specified by:
getExpectedType
in classValueExpression
-
getType
public Class<?> getType(ELContext context) throws NullPointerException, PropertyNotFoundException, ELException
- Specified by:
getType
in classValueExpression
- Parameters:
context
- The EL context for this evaluation- Returns:
- The type of the result of this value expression
- Throws:
NullPointerException
- If the supplied context isnull
PropertyNotFoundException
- 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 variable
-
isReadOnly
public boolean isReadOnly(ELContext context) throws NullPointerException, PropertyNotFoundException, ELException
- Specified by:
isReadOnly
in classValueExpression
- Parameters:
context
- The EL context for this evaluation- Returns:
true
if this expression is read only otherwisefalse
- Throws:
NullPointerException
- If the supplied context isnull
PropertyNotFoundException
- 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 variable
-
setValue
public void setValue(ELContext context, Object value) throws NullPointerException, PropertyNotFoundException, PropertyNotWritableException, ELException
- Specified by:
setValue
in classValueExpression
- Parameters:
context
- The EL context for this evaluationvalue
- The value to set the property to which this value expression refers- Throws:
NullPointerException
- If the supplied context isnull
PropertyNotFoundException
- 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 variable
-
getValue
public Object getValue(ELContext context) throws NullPointerException, PropertyNotFoundException, ELException
- Specified by:
getValue
in classValueExpression
- Parameters:
context
- The EL context for this evaluation- Returns:
- The result of evaluating this value expression
- Throws:
NullPointerException
- If the supplied context isnull
PropertyNotFoundException
- 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 variable
-
equals
public boolean equals(Object obj)
- Specified by:
equals
in classExpression
-
hashCode
public int hashCode()
- Specified by:
hashCode
in classExpression
-
getExpressionString
public String getExpressionString()
- Specified by:
getExpressionString
in classExpression
-
isLiteralText
public boolean isLiteralText()
- Specified by:
isLiteralText
in classExpression
-
writeExternal
public void writeExternal(ObjectOutput out) throws IOException
- Specified by:
writeExternal
in interfaceExternalizable
- Throws:
IOException
-
readExternal
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
- Specified by:
readExternal
in interfaceExternalizable
- Throws:
IOException
ClassNotFoundException
-
-