Package org.castor.cpa.query.object
Class ProjectionImpl
java.lang.Object
org.castor.cpa.query.object.AbstractQueryObject
org.castor.cpa.query.object.expression.AbstractExpression
org.castor.cpa.query.object.AbstractField
org.castor.cpa.query.object.ProjectionImpl
- All Implemented Interfaces:
Expression
,Field
,Projection
,QueryObject
Final immutable class that a projection of a select query.
- Since:
- 1.3
- Version:
- $Revision: 7121 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr 2006) $
- Author:
- Udai Gupta, Ralf Joachim
-
Constructor Summary
ConstructorsConstructorDescriptionProjectionImpl
(Field field) Construct projection with given field.ProjectionImpl
(Field field, String alias) Construct projection with given field and alias. -
Method Summary
Modifier and TypeMethodDescriptiongetAlias()
Gets the alias of the projection.getField()
Gets the field or schema of the projection.Append full string representation of projection to the givenStringBuilder
.Append full string representation of projection to the givenStringBuilder
.Append a string representation of the object to the givenStringBuilder
.Methods inherited from class org.castor.cpa.query.object.AbstractField
field, in, isNotNull, isNull, notIn
Methods inherited from class org.castor.cpa.query.object.expression.AbstractExpression
abs, add, add, add, add, between, between, between, between, between, between, between, concat, concat, divide, divide, divide, divide, equal, equal, equal, equal, equal, equal, equal, equal, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, length, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessThan, lessThan, lessThan, lessThan, lessThan, lessThan, lessThan, like, like, like, like, like, like, locate, locate, locate, locate, locate, locate, lower, multiply, multiply, multiply, multiply, negate, notBetween, notBetween, notBetween, notBetween, notBetween, notBetween, notBetween, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notLike, notLike, notLike, notLike, notLike, notLike, plus, remainder, remainder, remainder, remainder, sqrt, substring, substring, substring, substring, subtract, subtract, subtract, subtract, trim, trim, trim, trim, trim, trim, upper
Methods inherited from class org.castor.cpa.query.object.AbstractQueryObject
toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.castor.cpa.query.Expression
abs, add, add, add, add, between, between, between, between, between, between, between, concat, concat, divide, divide, divide, divide, equal, equal, equal, equal, equal, equal, equal, equal, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, length, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessThan, lessThan, lessThan, lessThan, lessThan, lessThan, lessThan, like, like, like, like, like, like, locate, locate, locate, locate, locate, locate, lower, multiply, multiply, multiply, multiply, negate, notBetween, notBetween, notBetween, notBetween, notBetween, notBetween, notBetween, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notLike, notLike, notLike, notLike, notLike, notLike, plus, remainder, remainder, remainder, remainder, sqrt, substring, substring, substring, substring, subtract, subtract, subtract, subtract, trim, trim, trim, trim, trim, trim, upper
-
Constructor Details
-
ProjectionImpl
Construct projection with given field.- Parameters:
field
- The field or schema of the projection.
-
ProjectionImpl
Construct projection with given field and alias.- Parameters:
field
- The field or schema of the projection.alias
- The alias of the projection.
-
-
Method Details
-
getField
Gets the field or schema of the projection.- Returns:
- The field of the projection.
-
getAlias
Gets the alias of the projection.- Returns:
- The alias of the projection.
-
toString
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.- Specified by:
toString
in interfaceQueryObject
- Parameters:
sb
- StringBuilder to append the string representation of this object to.- Returns:
- Same instance of StringBuilder given as parameter.
-
toFullString
Append full string representation of projection to the givenStringBuilder
. For projection toString() method returns alias only. To get full projection string one has to call toFullString() method.- Specified by:
toFullString
in interfaceProjection
- Parameters:
sb
- StringBuilder to append the string representation of this object to.- Returns:
- Same instance of StringBuilder given as parameter.
-
toFullString
Append full string representation of projection to the givenStringBuilder
. For projection toString() method returns alias only. To get full projection string one has to call toFullString() method.- Specified by:
toFullString
in interfaceProjection
- Returns:
- String with full representation of projection.
-