de.smartics.properties.api.core.domain
Class PropertyExpression

java.lang.Object
  de.smartics.properties.api.core.domain.PropertyExpression

All Implemented Interfaces:

Serializable

public final class PropertyExpression
     
     

      
      extends 
      
      Object
     
     
     
     

      
      implements 
      
      Serializable
     
     

Provides information about the expression to evaluate a default value for a property.

See Also:

Serialized Form

Field Summary

static PropertyExpression

NO_EXPRESSION The expression instance to signal that there is no property expression.

Method Summary

static PropertyExpression	create(String expression) Creates an instance of PropertyExpression with the given expression string.
String	getExpression() Returns the expression string.
boolean	hasExpression() Checks if an expression string is present.
String	toString() Returns the name of the type.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NO_EXPRESSION

public static final PropertyExpression NO_EXPRESSION

The expression instance to signal that there is no property expression.

Method Detail

create

public static PropertyExpression create(String expression)

Creates an instance of PropertyExpression with the given expression string.

Parameters:

expression - the expression string.

Returns:

the created instance. If the expression is blank, the singleton expression NO_EXPRESSION is returned.

hasExpression

public boolean hasExpression()

Checks if an expression string is present.

Returns:

true if the expression string is not null , false if it is null.

getExpression

public String getExpression()

Returns the expression string.

Returns:

the expression string. May be null.

toString

public String toString()

Returns the name of the type.

Overrides:

toString in class Object

Returns:

the name of the type.