Package org.apache.commons.jexl3.parser

Class FeatureController

java.lang.Object

org.apache.commons.jexl3.parser.ParserVisitor

org.apache.commons.jexl3.internal.ScriptVisitor

org.apache.commons.jexl3.parser.FeatureController

public class FeatureController
extends ScriptVisitor

Controls that a script only uses enabled features.

Field Summary

Fields

Modifier and Type	Field	Description
private JexlFeatures	features	The set of features.

Constructor Summary

Constructors

Constructor	Description
FeatureController(JexlFeatures features)	Creates a feature controller.

Method Summary

Modifier and Type	Method	Description
void	controlNode(JexlNode node)	Perform the control on a node.
private Object	controlSideEffect(JexlNode node, Object data)
JexlFeatures	getFeatures()
private boolean	isArrayReferenceLiteral(JexlNode child)	Checks whether a node is a string or an integer.
void	setFeatures(JexlFeatures fdesc)	Sets the features to controlNode.
void	throwFeatureException(int feature, JexlNode node)	Throws a feature exception.
protected Object	visit(ASTAnnotation node, Object data)
protected Object	visit(ASTArrayAccess node, Object data)
protected Object	visit(ASTArrayLiteral node, Object data)
protected Object	visit(ASTAssignment node, Object data)
protected Object	visit(ASTConstructorNode node, Object data)
protected Object	visit(ASTDecrementGetNode node, Object data)
protected Object	visit(ASTDoWhileStatement node, Object data)
protected Object	visit(ASTForeachStatement node, Object data)
protected Object	visit(ASTGetDecrementNode node, Object data)
protected Object	visit(ASTGetIncrementNode node, Object data)
protected Object	visit(ASTIncrementGetNode node, Object data)
protected Object	visit(ASTMapLiteral node, Object data)
protected Object	visit(ASTMethodNode node, Object data)
protected Object	visit(ASTRangeNode node, Object data)
protected Object	visit(ASTSetAddNode node, Object data)
protected Object	visit(ASTSetAndNode node, Object data)
protected Object	visit(ASTSetDivNode node, Object data)
protected Object	visit(ASTSetLiteral node, Object data)
protected Object	visit(ASTSetModNode node, Object data)
protected Object	visit(ASTSetMultNode node, Object data)
protected Object	visit(ASTSetOrNode node, Object data)
protected Object	visit(ASTSetShiftLeftNode node, Object data)
protected Object	visit(ASTSetShiftRightNode node, Object data)
protected Object	visit(ASTSetShiftRightUnsignedNode node, Object data)
protected Object	visit(ASTSetSubNode node, Object data)
protected Object	visit(ASTSetXorNode node, Object data)
protected Object	visit(ASTTryStatement node, Object data)
protected Object	visit(ASTWhileStatement node, Object data)
protected Object	visitNode(JexlNode node, Object data)	Visits a node.

Methods inherited from class org.apache.commons.jexl3.internal.ScriptVisitor

visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visitExpression, visitScript

Methods inherited from class org.apache.commons.jexl3.parser.ParserVisitor

visit, visit

Methods inherited from class java.lang.Object

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

Field Details

features

private JexlFeatures features

The set of features.

Constructor Details

FeatureController

public FeatureController(JexlFeatures features)

Creates a feature controller.

Method Details

controlNode

public void controlNode(JexlNode node)

Perform the control on a node.

Note that controlNode() does *not* visit node children in this class.

Parameters:

node - the node to controlNode

Throws:

JexlException.Feature - if required feature is disabled

controlSideEffect

private Object controlSideEffect(JexlNode node,
 Object data)

getFeatures

public JexlFeatures getFeatures()

Returns:

the controlled features

isArrayReferenceLiteral

private boolean isArrayReferenceLiteral(JexlNode child)

Checks whether a node is a string or an integer.

Parameters:

child - the child node

Returns:

true if string / integer, false otherwise

setFeatures

public void setFeatures(JexlFeatures fdesc)

Sets the features to controlNode.

Parameters:

fdesc - the features

throwFeatureException

public void throwFeatureException(int feature,
 JexlNode node)

Throws a feature exception.

Parameters:

feature - the feature code

node - the node that caused it

visit

protected Object visit(ASTAnnotation node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTArrayAccess node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTArrayLiteral node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTAssignment node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTConstructorNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTDecrementGetNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTDoWhileStatement node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTForeachStatement node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTGetDecrementNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTGetIncrementNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTIncrementGetNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTMapLiteral node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTMethodNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTRangeNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetAddNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetAndNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetDivNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetLiteral node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetModNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetMultNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetOrNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetShiftLeftNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetShiftRightNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetShiftRightUnsignedNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetSubNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTSetXorNode node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTTryStatement node,
 Object data)

Overrides:

visit in class ScriptVisitor

visit

protected Object visit(ASTWhileStatement node,
 Object data)

Overrides:

visit in class ScriptVisitor

visitNode

protected Object visitNode(JexlNode node,
 Object data)

Description copied from class: ScriptVisitor

Visits a node. Default implementation visits all its children.

Overrides:

visitNode in class ScriptVisitor

Parameters:

node - the node to visit

data - visitor pattern argument

Returns:

visitor pattern value