org.shapelogic.logic
Class ParametricRuleTask

java.lang.Object
  extended by javax.swing.tree.DefaultMutableTreeNode
      extended by org.shapelogic.logic.BaseTask
          extended by org.shapelogic.logic.SimpleTask
              extended by org.shapelogic.logic.ParametricRuleTask
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, java.lang.Iterable, javax.swing.tree.MutableTreeNode, javax.swing.tree.TreeNode, org.apache.commons.jexl.JexlContext, Calc0, CalcInvoke, CalcValue, LazyCalc, Task

public class ParametricRuleTask
extends SimpleTask

More general task that can create all the other tasks, by taking 2 parameters.

1: A variable that the expression should work on
2: An expression that can contain the #, which will be replaced with the variable

The constructor takes a BinaryPredicate as an argument.

Author:
Sami Badawi
See Also:
Serialized Form

Field Summary
protected  BinaryPredicate _binaryPredicate
           
 
Fields inherited from class org.shapelogic.logic.SimpleTask
_expected, _expression
 
Fields inherited from class org.shapelogic.logic.BaseTask
_endTime, _failedSubTasksCount, _injector, _interest, _lastSubTaskState, _localContext, _localModule, _pathWork, _score, _selfWork, _selfWorkEstimate, _startTime, _state, _succededSubTasksCount, _value, CONTEXT_CALCULATION_MAP, DEFAULT_INTEREST, DEFAULT_SCORE, NAMED_TASKS, WORK_NOT_KNOWN
 
Fields inherited from class javax.swing.tree.DefaultMutableTreeNode
allowsChildren, children, EMPTY_ENUMERATION, parent, userObject
 
Constructor Summary
ParametricRuleTask(BaseTask parent, boolean createLocalContext, java.lang.String variable, java.lang.String expression, java.lang.Object expectedValue, java.lang.String binaryPredicateName)
           
 
Method Summary
 boolean match()
          Can be overridden
static java.lang.String transformExpression(java.lang.String variable, java.lang.String expression)
          Transform an expression and a variable to an expression where the variable has been substituted for #.
 
Methods inherited from class org.shapelogic.logic.SimpleTask
getExpression, setup
 
Methods inherited from class org.shapelogic.logic.BaseTask
calcNextSubTask, doPrintOnFail, errorOnFail, findEnumValue, findNamedValue, findNamedValueUsingSubTasks, getContext, getContextCalculation, getContextCalculationMap, getInjector, getInterest, getLastSubTaskState, getLocalContext, getLocalModule, getLowestContext, getName, getNamedTask, getNamedValue, getParentTask, getPathWork, getScore, getSelfTreeNode, getSelfWork, getSelfWorkEstimate, getState, getValue, getVars, invoke, isDirty, isPrintOnFail, iterator, mainCalc, postCalc, preCalc, setClassInContext, setClassInContext, setClassInContext, setContextCalculation, setInterest, setName, setNamedTask, setNamedValue, setPrintOnFail, setState, setVars
 
Methods inherited from class javax.swing.tree.DefaultMutableTreeNode
add, breadthFirstEnumeration, children, clone, depthFirstEnumeration, getAllowsChildren, getChildAfter, getChildAt, getChildBefore, getChildCount, getDepth, getFirstChild, getFirstLeaf, getIndex, getLastChild, getLastLeaf, getLeafCount, getLevel, getNextLeaf, getNextNode, getNextSibling, getParent, getPath, getPathToRoot, getPreviousLeaf, getPreviousNode, getPreviousSibling, getRoot, getSharedAncestor, getSiblingCount, getUserObject, getUserObjectPath, insert, isLeaf, isNodeAncestor, isNodeChild, isNodeDescendant, isNodeRelated, isNodeSibling, isRoot, pathFromAncestorEnumeration, postorderEnumeration, preorderEnumeration, remove, remove, removeAllChildren, removeFromParent, setAllowsChildren, setParent, setUserObject, toString
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface javax.swing.tree.TreeNode
children, getAllowsChildren, getChildAt, getChildCount, getIndex, getParent, isLeaf
 

Field Detail

_binaryPredicate

protected BinaryPredicate _binaryPredicate
Constructor Detail

ParametricRuleTask

public ParametricRuleTask(BaseTask parent,
                          boolean createLocalContext,
                          java.lang.String variable,
                          java.lang.String expression,
                          java.lang.Object expectedValue,
                          java.lang.String binaryPredicateName)
Method Detail

match

public boolean match()
Description copied from class: SimpleTask
Can be overridden

Specified by:
match in interface Task
Overrides:
match in class SimpleTask

transformExpression

public static java.lang.String transformExpression(java.lang.String variable,
                                                   java.lang.String expression)
Transform an expression and a variable to an expression where the variable has been substituted for #. E.g. "polygon", "#.getHorizontalLines().size()" -> "polygon.getHorizontalLines().size()"

Parameters:
variable - in a JEXL context
expression - where # is a place holder for the variable
Returns:
the transformed expression


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