org.ow2.opensuit.cel.impl.tree.impl.ast
Class AstUnaryOperation

java.lang.Object
  org.ow2.opensuit.cel.impl.tree.impl.ast.AstNode
      org.ow2.opensuit.cel.impl.tree.impl.ast.AstRightValue
          org.ow2.opensuit.cel.impl.tree.impl.ast.AstUnaryOperation

All Implemented Interfaces:

IExpression, IExprNode

public class AstUnaryOperation
extends AstRightValue

Nested Class Summary

static interface

AstUnaryOperation.Operator

Field Summary

static AstUnaryOperation.Operator	EMPTY
static AstUnaryOperation.Operator	NEG
static AstUnaryOperation.Operator	NOT

Fields inherited from class org.ow2.opensuit.cel.impl.tree.impl.ast.AstNode

position

Constructor Summary

AstUnaryOperation(int position, AstNode child, AstUnaryOperation.Operator operator)

Method Summary

protected void	appendExpressionString(java.lang.StringBuilder b) Recursive method to build an expression string form.
protected void	appendValuePattern(java.lang.StringBuilder builder) Recursive method to build the returned values regular expression.
boolean	compile(ITypeConverter converter, ICompilationContext ctx, ICompilationResultWriter messages) Allow to compile the given expression with the associated and .
java.lang.reflect.Type	getGenericType() Returns the expression generic type
AstUnaryOperation.Operator	getOperator()
java.lang.Class<?>	getType() Returns the expression type
java.lang.Object	invoke(IEvaluationContext context) Evaluates the expression.
boolean	isStaticValue() Returns true if the expression has a static value (i.e. that does not depend on any evaluation context).

Methods inherited from class org.ow2.opensuit.cel.impl.tree.impl.ast.AstRightValue

isReadOnly, set

Methods inherited from class org.ow2.opensuit.cel.impl.tree.impl.ast.AstNode

getExpressionString, getPosition, getValuePattern, toString

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

public static final AstUnaryOperation.Operator EMPTY

NEG

public static final AstUnaryOperation.Operator NEG

NOT

public static final AstUnaryOperation.Operator NOT

Constructor Detail

AstUnaryOperation

public AstUnaryOperation(int position,
                         AstNode child,
                         AstUnaryOperation.Operator operator)

Method Detail

compile

public boolean compile(ITypeConverter converter,
                       ICompilationContext ctx,
                       ICompilationResultWriter messages)

Description copied from interface: IExprNode

Allow to compile the given expression with the associated and . All messages will be stored into the at the end of the performed compilation.

Parameters:

converter - Interface for conversion types

ctx - Interface for compilation context

messages - Represent where the messages compilation will be stored

Returns:

getType

public java.lang.Class<?> getType()

Description copied from interface: IExpression

Returns the expression type

getGenericType

public java.lang.reflect.Type getGenericType()

Description copied from interface: IExpression

Returns the expression generic type

isStaticValue

public boolean isStaticValue()

Description copied from interface: IExpression

Returns true if the expression has a static value (i.e. that does not depend on any evaluation context). In such a case, the invoke(...) method may be called with a null evaluation context.

Returns:

boolean

getOperator

public AstUnaryOperation.Operator getOperator()

invoke

public java.lang.Object invoke(IEvaluationContext context)
                        throws java.lang.Exception

Description copied from interface: IExpression

Evaluates the expression.

Throws:

java.lang.Exception

appendExpressionString

protected void appendExpressionString(java.lang.StringBuilder b)

Description copied from class: AstNode

Recursive method to build an expression string form.

Specified by:

appendExpressionString in class AstNode

appendValuePattern

protected void appendValuePattern(java.lang.StringBuilder builder)

Description copied from class: AstNode

Recursive method to build the returned values regular expression. This is used for advanced validation.

Specified by:

appendValuePattern in class AstNode