public class FilterExpressionDumper extends AbstractNodeVisitor
Query.setFilter
.
As this class inherits from AbstractNodeVisitor
, it only
overwrites those methods that need to dump and relies on the delegation
mechanism for the remaining methods implemented in
AbstractNodeVisitor
.Constructor and Description |
---|
FilterExpressionDumper()
Constructs an instance of this class.
|
FilterExpressionDumper(java.io.PrintStream out)
Constructs an instance of this class.
|
Modifier and Type | Method and Description |
---|---|
void |
arrive(AscendingOrderingExpression node)
Ascending ordering expressions are dumped like
Ascending(expression) . |
protected void |
arrive(BinaryExpression node)
Binary expressions are dumped in parenthesized manner.
|
void |
arrive(CastExpression node)
Cast expressions are dumped like
(type)expression . |
void |
arrive(ComplementExpression node)
Complement expressions are dumped like
~expression . |
void |
arrive(ConstantExpression node)
Dumps the value of the argument
node . |
void |
arrive(DescendingOrderingExpression node)
Descending ordering expressions are dumped like
Descending(expression) . |
void |
arrive(FieldAccessExpression node)
Field access expressions are dumped like
target.fieldName . |
void |
arrive(IdentifierExpression node)
Dumps the name of an identifier expression.
|
void |
arrive(NotExpression node)
Dumps a not expression.
|
void |
arrive(UnaryMinusExpression node)
Unary minus expressions are dumped like
-expression . |
protected java.lang.Object |
leave(BinaryExpression node,
java.lang.Object[] results)
Binary expressions are dumped in parenthesized manner.
|
java.lang.Object |
leave(FieldAccessExpression node,
java.lang.Object[] results)
Field access expressions are dumped like
target.fieldName . |
protected java.lang.Object |
leave(MethodCallExpression node,
java.lang.Object[] results)
Method call expressions are dumped like
target.methodName(arguments) . |
protected java.lang.Object |
leave(OrderingExpression node,
java.lang.Object[] results)
Ordering expressions are dumped like
Ascending/Descending(expression) . |
java.lang.Object |
leave(QueryTree node,
java.lang.Object[] results)
Query trees are dumped like
orderingExpressions, filterExpression . |
boolean |
walkNextChild(AndExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A logical and expression is dumped like
(leftExpression & rightExpression) . |
boolean |
walkNextChild(ConditionalAndExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A conditional and expression is dumped like
(leftExpression && rightExpression) . |
boolean |
walkNextChild(ConditionalOrExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A logical or expression is dumped like
(leftExpression || rightExpression) . |
boolean |
walkNextChild(DivideExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A divide expression is dumped like
(leftExpression / rightExpression) . |
boolean |
walkNextChild(EqualsExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
An equals expression is dumped like
(leftExpression == rightExpression) . |
boolean |
walkNextChild(GreaterThanEqualsExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A greater than equals expression is dumped like
(leftExpression >= rightExpression) . |
boolean |
walkNextChild(GreaterThanExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A greater than expression is dumped like
(leftExpression > rightExpression) . |
boolean |
walkNextChild(LessThanEqualsExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A less than equals expression is dumped like
(leftExpression <= rightExpression) . |
boolean |
walkNextChild(LessThanExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A less than expression is dumped like
(leftExpression < rightExpression) . |
protected boolean |
walkNextChild(MethodCallExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
Method call expressions are dumped like
target.methodName(arguments) . |
boolean |
walkNextChild(MinusExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A minus expression is dumped like
(leftExpression - rightExpression) . |
boolean |
walkNextChild(NotEqualsExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
Dumps a not equals expression.
|
boolean |
walkNextChild(OrExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A logical or expression is dumped like
(leftExpression | rightExpression) . |
boolean |
walkNextChild(PlusExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A plus expression is dumped like
(leftExpression + rightExpression) . |
boolean |
walkNextChild(QueryTree node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
Query trees are dumped like
orderingExpressions,
filterExpression . |
boolean |
walkNextChild(TimesExpression node,
java.lang.Object resultOfPreviousChild,
int indexOfNextChild)
A times expression is dumped like
(leftExpression * rightExpression) . |
arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, arrive, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, leave, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild, walkNextChild
public FilterExpressionDumper()
System.out
.public FilterExpressionDumper(java.io.PrintStream out)
out
.out
- the print stream to dump toprotected void arrive(BinaryExpression node)
arrive
in class AbstractNodeVisitor
node
- the node to dumpprotected java.lang.Object leave(BinaryExpression node, java.lang.Object[] results)
leave
in class AbstractNodeVisitor
node
- the node to dumpresults
- an array of null
instancesnull
protected java.lang.Object leave(MethodCallExpression node, java.lang.Object[] results)
target.methodName(arguments)
.leave
in class AbstractNodeVisitor
node
- the node to dumpresults
- an array of null
instancesnull
protected java.lang.Object leave(OrderingExpression node, java.lang.Object[] results)
Ascending/Descending(expression)
.leave
in class AbstractNodeVisitor
node
- the node to dumpresults
- an array of null
instancesnull
protected boolean walkNextChild(MethodCallExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
target.methodName(arguments)
.walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- the result of the previsous child nodeindexOfNextChild
- the index of the next child to be dumpedtrue
public void arrive(AscendingOrderingExpression node)
Ascending(expression)
.arrive
in interface NodeVisitor
arrive
in class AbstractNodeVisitor
node
- the node to dumppublic void arrive(DescendingOrderingExpression node)
Descending(expression)
.arrive
in interface NodeVisitor
arrive
in class AbstractNodeVisitor
node
- the node to dumppublic void arrive(ConstantExpression node)
node
. If that node holds
a String instance, then the string value is dumped in double quotes.arrive
in interface NodeVisitor
arrive
in class AbstractNodeVisitor
node
- the node to dumppublic void arrive(CastExpression node)
(type)expression
.arrive
in interface NodeVisitor
arrive
in class AbstractNodeVisitor
node
- the node to dumppublic void arrive(FieldAccessExpression node)
target.fieldName
.arrive
in interface NodeVisitor
arrive
in class AbstractNodeVisitor
node
- the node to dumppublic void arrive(ComplementExpression node)
~expression
.arrive
in interface NodeVisitor
arrive
in class AbstractNodeVisitor
node
- the node to dumppublic void arrive(IdentifierExpression node)
arrive
in interface NodeVisitor
arrive
in class AbstractNodeVisitor
node
- the node to dumppublic void arrive(NotExpression node)
!expression
.arrive
in interface NodeVisitor
arrive
in class AbstractNodeVisitor
node
- the node to dumppublic void arrive(UnaryMinusExpression node)
-expression
.arrive
in interface NodeVisitor
arrive
in class AbstractNodeVisitor
node
- the node to dumppublic java.lang.Object leave(FieldAccessExpression node, java.lang.Object[] results)
target.fieldName
.leave
in interface NodeVisitor
leave
in class AbstractNodeVisitor
node
- the node to dumpresults
- the results of walking the node's childrenpublic java.lang.Object leave(QueryTree node, java.lang.Object[] results)
orderingExpressions, filterExpression
.leave
in interface NodeVisitor
leave
in class AbstractNodeVisitor
node
- the node to dumpresults
- the results of walking the node's childrenpublic boolean walkNextChild(AndExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression & rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(ConditionalAndExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression && rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(ConditionalOrExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression || rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(DivideExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression / rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(EqualsExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression == rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(GreaterThanEqualsExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression >= rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(GreaterThanExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression > rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(LessThanEqualsExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression <= rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(LessThanExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression < rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(MinusExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression - rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(NotEqualsExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression != rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(OrExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression | rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(QueryTree node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
orderingExpressions,
filterExpression
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(PlusExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression + rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
public boolean walkNextChild(TimesExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
(leftExpression * rightExpression)
.walkNextChild
in interface NodeVisitor
walkNextChild
in class AbstractNodeVisitor
node
- the parent node of the children currently dumpedresultOfPreviousChild
- an array of null
instancesindexOfNextChild
- the index of the next child to be dumpedtrue
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