Package org.apache.commons.ognl

Class NumericExpression

java.lang.Object

org.apache.commons.ognl.SimpleNode

org.apache.commons.ognl.ExpressionNode

org.apache.commons.ognl.NumericExpression

All Implemented Interfaces:

java.io.Serializable, JavaSource, Node, NodeType

Direct Known Subclasses:

ASTAdd, ASTBitAnd, ASTBitNegate, ASTBitOr, ASTDivide, ASTMultiply, ASTNegate, ASTRemainder, ASTShiftLeft, ASTShiftRight, ASTSubtract, ASTUnsignedShiftRight, ASTXor

public abstract class NumericExpression
extends ExpressionNode
implements NodeType

Base class for numeric expressions.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected java.lang.Class<?>	getterClass
private static long	serialVersionUID

Fields inherited from class org.apache.commons.ognl.SimpleNode

children, id, parent, parser

Constructor Summary

Constructors

Constructor	Description
NumericExpression(int id)
NumericExpression(OgnlParser p, int id)

Method Summary

Modifier and Type	Method	Description
java.lang.String	coerceToNumeric(java.lang.String source, OgnlContext context, Node child)
java.lang.Class<?>	getGetterClass()	The type returned from the expression - if any.
java.lang.Class<?>	getSetterClass()	The type used to set the value - if any.
java.lang.String	toGetSourceString(OgnlContext context, java.lang.Object target)	Expected to return a java source representation of itself such that it could be turned into a literal java expression to be compiled and executed for ExpressionAccessor.get(OgnlContext, Object) calls.

Methods inherited from class org.apache.commons.ognl.ExpressionNode

getExpressionOperator, isConstant, isNodeConstant, toSetSourceString

Methods inherited from class org.apache.commons.ognl.SimpleNode

dump, evaluateGetValueBody, evaluateSetValueBody, flattenTree, getAccessor, getIndexInParent, getNextSibling, getValue, getValueBody, isEvalChain, isNodeSimpleProperty, isSimpleNavigationChain, isSimpleProperty, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, lastChild, setAccessor, setValue, setValueBody, toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.ognl.Node

accept

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

getterClass

protected java.lang.Class<?> getterClass

Constructor Detail

NumericExpression

public NumericExpression(int id)

NumericExpression

public NumericExpression(OgnlParser p,
                         int id)

Method Detail

getGetterClass

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

The type returned from the expression - if any.

Specified by:

getGetterClass in interface NodeType

Returns:

The type.

getSetterClass

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

The type used to set the value - if any.

Specified by:

getSetterClass in interface NodeType

Returns:

The type.

toGetSourceString

public java.lang.String toGetSourceString(OgnlContext context,
                                          java.lang.Object target)

Expected to return a java source representation of itself such that it could be turned into a literal java expression to be compiled and executed for ExpressionAccessor.get(OgnlContext, Object) calls.

Specified by:

toGetSourceString in interface JavaSource

Overrides:

toGetSourceString in class ExpressionNode

Returns:

Literal java string representation of an object get.

coerceToNumeric

public java.lang.String coerceToNumeric(java.lang.String source,
                                        OgnlContext context,
                                        Node child)