Class Null
- java.lang.Object
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- org.castor.cpa.query.object.AbstractQueryObject
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- org.castor.cpa.query.object.condition.AbstractCondition
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- org.castor.cpa.query.object.condition.SimpleCondition
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- org.castor.cpa.query.object.condition.Null
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- All Implemented Interfaces:
Condition
,QueryObject
public final class Null extends SimpleCondition
Final class that represents null simple condition.- Since:
- 1.3
- Version:
- $Revision: 7121 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr 2006) $
- Author:
- Udai Gupta, Ralf Joachim
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Constructor Summary
Constructors Constructor Description Null()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.StringBuilder
toString(java.lang.StringBuilder sb)
Append a string representation of the object to the givenStringBuilder
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Methods inherited from class org.castor.cpa.query.object.condition.SimpleCondition
getExpression, isNot, not, setExpression, setNot
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Methods inherited from class org.castor.cpa.query.object.condition.AbstractCondition
and, or
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Methods inherited from class org.castor.cpa.query.object.AbstractQueryObject
toString
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Method Detail
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toString
public java.lang.StringBuilder toString(java.lang.StringBuilder sb)
Append a string representation of the object to the givenStringBuilder
. In general, the toString method for query objects appends a string that textually represents this object. The result should be a query string that complies to EJB QL specification as long as the query object represents a syntay element of it. It is required that all subclasses override this method. The toString method defined at class Object is overwritten and calls this method.- Parameters:
sb
- StringBuilder to append the string representation of this object to.- Returns:
- Same instance of StringBuilder given as parameter.
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