org.apache.shale.test.el
Class MockValueExpression

java.lang.Object
  javax.el.Expression
      javax.el.ValueExpression
          org.apache.shale.test.el.MockValueExpression

All Implemented Interfaces:

Serializable

public class MockValueExpression
extends javax.el.ValueExpression

Mock implementation of ValueExpression.

This implementation supports a limited subset of overall expression functionality:

• A literal string that contains no expression delimiters.
• An expression that starts with "#{" or "${", and ends with "}".

See Also:

Serialized Form

Constructor Summary

MockValueExpression(String expression, Class expectedType)
Construct a new expression for the specified expression string.

Method Summary

boolean	equals(Object obj) Return true if this expression is equal to the specified expression.
Class	getExpectedType() Return the type that the result of this expression will be coerced to.
String	getExpressionString() Return the original String used to create this expression, unmodified.
Class	getType(javax.el.ELContext context) Evaluate this expression relative to the specified context, and return the most general type that is acceptable for the value passed in a setValue() call.
Object	getValue(javax.el.ELContext context) Evaluate this expression relative to the specified context, and return the result.
int	hashCode() Return the hash code for this expression.
boolean	isLiteralText() Return true if the expression string for this expression contains only literal text.
boolean	isReadOnly(javax.el.ELContext context) Evaluate this expression relative to the specified context, and return true if a call to setValue() will always fail.
void	setValue(javax.el.ELContext context, Object value) Evaluate this expression relative to the specified context, and set the result to the specified value.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MockValueExpression

public MockValueExpression(String expression,
                           Class expectedType)

Construct a new expression for the specified expression string.

Parameters:

expression - Expression string to be evaluated

expectedType - Expected type of the result

Method Detail

equals

public boolean equals(Object obj)

Return true if this expression is equal to the specified expression.

Specified by:

equals in class javax.el.Expression

Parameters:

obj - Object to be compared

getExpressionString

public String getExpressionString()

Return the original String used to create this expression, unmodified.

Specified by:

getExpressionString in class javax.el.Expression

hashCode

public int hashCode()

Return the hash code for this expression.

Specified by:

hashCode in class javax.el.Expression

isLiteralText

public boolean isLiteralText()

Return true if the expression string for this expression contains only literal text.

Specified by:

isLiteralText in class javax.el.Expression

getExpectedType

public Class getExpectedType()

Return the type that the result of this expression will be coerced to.

Specified by:

getExpectedType in class javax.el.ValueExpression

getType

public Class getType(javax.el.ELContext context)

Evaluate this expression relative to the specified context, and return the most general type that is acceptable for the value passed in a setValue() call.

Specified by:

getType in class javax.el.ValueExpression

Parameters:

context - ELContext for this evaluation

getValue

public Object getValue(javax.el.ELContext context)

Evaluate this expression relative to the specified context, and return the result.

Specified by:

getValue in class javax.el.ValueExpression

Parameters:

context - ELContext for this evaluation

isReadOnly

public boolean isReadOnly(javax.el.ELContext context)

Evaluate this expression relative to the specified context, and return true if a call to setValue() will always fail.

Specified by:

isReadOnly in class javax.el.ValueExpression

Parameters:

context - ELContext for this evaluation

setValue

public void setValue(javax.el.ELContext context,
                     Object value)

Evaluate this expression relative to the specified context, and set the result to the specified value.

Specified by:

setValue in class javax.el.ValueExpression

Parameters:

context - ELContext for this evaluation

value - Value to which the result should be set