org.apache.commons.jxpath.ri.compiler
Class Operation

java.lang.Object
  |
  +--org.apache.commons.jxpath.ri.compiler.Expression
        |
        +--org.apache.commons.jxpath.ri.compiler.Operation

Direct Known Subclasses:

CoreFunction, CoreOperation, ExtensionFunction

public abstract class Operation

extends Expression

Version:

$Revision: 1.3 $ $Date: 2002/05/08 00:39:59 $

Author:

Dmitri Plotnikov

Nested Class Summary

Nested classes inherited from class org.apache.commons.jxpath.ri.compiler.Expression

Expression.PointerIterator, Expression.ValueIterator

Field Summary

protected Expression[]

args

Fields inherited from class org.apache.commons.jxpath.ri.compiler.Expression

NaN, ONE, OP_AND, OP_CONSTANT, OP_CORE_FUNCTION, OP_DIV, OP_EQ, OP_EXPRESSION_PATH, OP_FUNCTION, OP_GT, OP_GTE, OP_KEY_LOOKUP, OP_LOCATION_PATH, OP_LT, OP_LTE, OP_MINUS, OP_MOD, OP_MULT, OP_NE, OP_OR, OP_STEP, OP_SUM, OP_UNARY_MINUS, OP_UNION, OP_VAR, ZERO

Constructor Summary

Operation(int code, Expression[] args)

Method Summary

boolean	computeContextDependent() Implemented by subclasses and result is cached by isContextDependent()
Expression[]	getArguments()

Methods inherited from class org.apache.commons.jxpath.ri.compiler.Expression

compute, computeValue, getExpressionTypeCode, isContextDependent, iterate, iteratePointers, opCodeToString, toString

Methods inherited from class java.lang.Object

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

Field Detail

args

protected Expression[] args

Constructor Detail

Operation

public Operation(int code,
                 Expression[] args)

Method Detail

getArguments

public Expression[] getArguments()

Overrides:

getArguments in class Expression

computeContextDependent

public boolean computeContextDependent()

Description copied from class: Expression

Implemented by subclasses and result is cached by isContextDependent()

Specified by:

computeContextDependent in class Expression