Package jmri.jmrit.logixng.util.parser
Class ExpressionNodeArray
- java.lang.Object
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- jmri.jmrit.logixng.util.parser.ExpressionNodeArray
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- All Implemented Interfaces:
ExpressionNode
,ExpressionNodeWithParameter
public class ExpressionNodeArray extends java.lang.Object implements ExpressionNodeWithParameter
A parsed expression
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Constructor Summary
Constructors Constructor Description ExpressionNodeArray(ExpressionNode exprNode)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
assignValue(java.lang.Object parameter, SymbolTable symbolTable, java.lang.Object value)
Assign a value to this expression from a parameter.java.lang.Object
calculate(java.lang.Object parameter, SymbolTable symbolTable)
Calculate the expression from a parameter.boolean
canBeAssigned()
Can this expression be assigned a value?java.lang.String
getDefinitionString()
Get a String that defines this expression node.-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface jmri.jmrit.logixng.util.parser.ExpressionNode
assignValue
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Methods inherited from interface jmri.jmrit.logixng.util.parser.ExpressionNodeWithParameter
calculate
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Constructor Detail
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ExpressionNodeArray
public ExpressionNodeArray(ExpressionNode exprNode) throws FunctionNotExistsException
- Throws:
FunctionNotExistsException
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Method Detail
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calculate
public java.lang.Object calculate(java.lang.Object parameter, SymbolTable symbolTable) throws JmriException
Description copied from interface:ExpressionNodeWithParameter
Calculate the expression from a parameter.- Specified by:
calculate
in interfaceExpressionNodeWithParameter
- Parameters:
parameter
- the parametersymbolTable
- the symbol table- Returns:
- the result
- Throws:
JmriException
- if an error occurs
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canBeAssigned
public boolean canBeAssigned()
Can this expression be assigned a value?- Specified by:
canBeAssigned
in interfaceExpressionNode
- Returns:
- true if it's possible to assign a value to this expression, false otherwise
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assignValue
public void assignValue(java.lang.Object parameter, SymbolTable symbolTable, java.lang.Object value) throws JmriException
Assign a value to this expression from a parameter.- Specified by:
assignValue
in interfaceExpressionNodeWithParameter
- Parameters:
parameter
- the parametersymbolTable
- the symbol tablevalue
- the value to assign- Throws:
JmriException
- if an error occurs
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getDefinitionString
public java.lang.String getDefinitionString()
Get a String that defines this expression node.- Specified by:
getDefinitionString
in interfaceExpressionNode
- Returns:
- the string
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