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This interface provides methods for factorizing expression nodes. Expression nodes are used as filter expressions for query trees.
Method Summary | |
AndExpression |
newAnd(Expression left,
Expression right)
Returns an and expression for the arguments left and right . |
CastExpression |
newCast(java.lang.Class clazz,
Expression expression)
Returns an instance of CastExpression . |
ComplementExpression |
newComplement(Expression expr)
Returns a complement expression for the argument expr . |
ConditionalAndExpression |
newConditionalAnd(Expression left,
Expression right)
Returns a conditional and expression for the arguments left and right . |
ConditionalOrExpression |
newConditionalOr(Expression left,
Expression right)
Returns a conditional or expression for the arguments left and right . |
ConstantExpression |
newConstant(boolean b)
Returns an instance of BooleanLiteralExpression . |
ConstantExpression |
newConstant(byte b)
Returns an instance of ByteLiteralExpression . |
ConstantExpression |
newConstant(char c)
Returns an instance of CharLiteralExpression . |
ConstantExpression |
newConstant(double d)
Returns an instance of DoubleLiteralExpression . |
ConstantExpression |
newConstant(float f)
Returns an instance of FloatLiteralExpression . |
ConstantExpression |
newConstant(int i)
Returns an instance of IntLiteralExpression . |
ConstantExpression |
newConstant(long l)
Returns an instance of LongLiteralExpression . |
ConstantExpression |
newConstant(java.lang.Object value)
Returns an instance of ConstantExpression . |
ConstantExpression |
newConstant(short s)
Returns an instance of ShortLiteralExpression . |
DivideExpression |
newDivide(Expression left,
Expression right)
Returns a divide expression for the arguments left and right . |
EqualsExpression |
newEquals(Expression left,
Expression right)
Returns an equals expression for the arguments left and right . |
StaticFieldAccessExpression |
newFieldAccess(java.lang.Class clazz,
java.lang.String fieldName)
Returns an instance of StaticFieldAccessExpression . |
FieldAccessExpression |
newFieldAccess(Expression target,
java.lang.String fieldName)
Returns an instance of FieldAccessExpression . |
GreaterThanExpression |
newGreaterThan(Expression left,
Expression right)
Returns a greater than expression for the arguments left and right . |
GreaterThanEqualsExpression |
newGreaterThanEquals(Expression left,
Expression right)
Returns a greater than equals expression for the arguments left and right . |
IdentifierExpression |
newIdentifier(java.lang.String identifier)
The implementation may decide to create an instance of FieldAccessExpression ,
VariableAccessExpression or
ParameterAccessExpression depending on the fact
whether the argument corresponds with a parameter, variable or
a field of the candidate class. |
LessThanExpression |
newLessThan(Expression left,
Expression right)
Returns a less than expression for the arguments left and right . |
LessThanEqualsExpression |
newLessThanEquals(Expression left,
Expression right)
Returns a less than equals expression for the arguments left and right . |
MethodCallExpression |
newMethodCall(Expression target,
java.lang.String methodName,
Expression[] arguments)
The implementation may decide to create a specialized instance of MethodCallExpression (for example,
ContainsCallExpression )
depending on the argument methodName . |
UnaryMinusExpression |
newMinus(Expression expr)
Returns a unary minus expression for the argument expr . |
MinusExpression |
newMinus(Expression left,
Expression right)
Returns a minus expression for the arguments left and right . |
NotExpression |
newNot(Expression expr)
Returns a not expression for the argument expr . |
NotEqualsExpression |
newNotEquals(Expression left,
Expression right)
Returns a not equals expression for the arguments left and right . |
OrExpression |
newOr(Expression left,
Expression right)
Returns an or expression for the arguments left and right . |
UnaryPlusExpression |
newPlus(Expression expr)
Returns a plus expression for the argument expr . |
PlusExpression |
newPlus(Expression left,
Expression right)
Returns a plus expression for the arguments left and right . |
TimesExpression |
newTimes(Expression left,
Expression right)
Returns a times expression for the arguments left and right . |
Method Detail |
public IdentifierExpression newIdentifier(java.lang.String identifier)
FieldAccessExpression
,
VariableAccessExpression
or
ParameterAccessExpression
depending on the fact
whether the argument corresponds with a parameter, variable or
a field of the candidate class. Optionally, the implementation
may return an instance of IdentifierExpression
which later may be replaced with its specialized counterpart
semantically analysing a query tree.
identifier
- the name of the identifier access expression
public FieldAccessExpression newFieldAccess(Expression target, java.lang.String fieldName)
FieldAccessExpression
.
target
- the target expression of the field access expressionfieldName
- the name of the field to access
public StaticFieldAccessExpression newFieldAccess(java.lang.Class clazz, java.lang.String fieldName)
StaticFieldAccessExpression
.
clazz
- the class instance defining the fieldfieldName
- the name of the field to access
public MethodCallExpression newMethodCall(Expression target, java.lang.String methodName, Expression[] arguments)
MethodCallExpression
(for example,
ContainsCallExpression
)
depending on the argument methodName
.
Optionally, the implementation may return an instance of
MethodCallExpression
which later may be replaced with its specialized counterpart
semantically analysing a query tree.
target
- the target expression of the method call expressionmethodName
- the name of the methodarguments
- the array of arguments
public CastExpression newCast(java.lang.Class clazz, Expression expression)
CastExpression
.
clazz
- the Java class to cast the argument
expression
toexpression
- the expression to cast
public ConstantExpression newConstant(boolean b)
BooleanLiteralExpression
.
b
- the value wrapped by the boolean expression
public ConstantExpression newConstant(byte b)
ByteLiteralExpression
.
b
- the value wrapped by the byte expression
public ConstantExpression newConstant(char c)
CharLiteralExpression
.
c
- the value wrapped by the char expression
public ConstantExpression newConstant(double d)
DoubleLiteralExpression
.
d
- the value wrapped by the double expression
public ConstantExpression newConstant(float f)
FloatLiteralExpression
.
f
- the value wrapped by the float expression
public ConstantExpression newConstant(int i)
IntLiteralExpression
.
i
- the value wrapped by the int expression
public ConstantExpression newConstant(long l)
LongLiteralExpression
.
l
- the value wrapped by the long expression
public ConstantExpression newConstant(short s)
ShortLiteralExpression
.
s
- the value wrapped by the short expression
public ConstantExpression newConstant(java.lang.Object value)
ConstantExpression
.
This method handles null
as a constant expression.
value
- the object wrapped by the constant expression
public ComplementExpression newComplement(Expression expr)
expr
.
expr
- the expression argument for the operation
public UnaryMinusExpression newMinus(Expression expr)
expr
.
expr
- the expression argument for the operation
public NotExpression newNot(Expression expr)
expr
.
expr
- the expression argument for the operation
public UnaryPlusExpression newPlus(Expression expr)
expr
.
expr
- the expression argument for the operation
public AndExpression newAnd(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public ConditionalAndExpression newConditionalAnd(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public ConditionalOrExpression newConditionalOr(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public DivideExpression newDivide(Expression left, Expression right)
left
and right
.
This method throws NullPointerException
if one of
the arguments left
or right
are
null
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public EqualsExpression newEquals(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public GreaterThanExpression newGreaterThan(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public GreaterThanEqualsExpression newGreaterThanEquals(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public LessThanExpression newLessThan(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public LessThanEqualsExpression newLessThanEquals(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public MinusExpression newMinus(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public NotEqualsExpression newNotEquals(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public PlusExpression newPlus(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public OrExpression newOr(Expression left, Expression right)
left
and right
.
This method throws NullPointerException
if one of
the arguments left
or right
are
null
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
public TimesExpression newTimes(Expression left, Expression right)
left
and right
.
left
- the left expression argument for the operationright
- the right expression argument for the operation
|
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