ExprSystem (Apache Jena ARQ)

java.lang.Object
- org.apache.jena.sparql.expr.ExprNode
- - org.apache.jena.sparql.expr.ExprFunction
  - - org.apache.jena.sparql.expr.ExprFunction0
    - - org.apache.jena.sparql.expr.ExprSystem

All Implemented Interfaces:

Expr

Direct Known Subclasses:

E_Now
```
public abstract class ExprSystem
extends ExprFunction0
```

- Field Summary
  - Fields inherited from interface org.apache.jena.sparql.expr.Expr
    CMP_EQUAL, CMP_GREATER, CMP_INDETERMINATE, CMP_LESS, CMP_UNEQUAL, NONE
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  NodeValue eval(FunctionEnv env)
  - Methods inherited from class org.apache.jena.sparql.expr.ExprFunction0
    apply, applyNodeTransform, copy, copySubstitute, eval, getArg, hashCode, numArgs, visit
  - Methods inherited from class org.apache.jena.sparql.expr.ExprFunction
    equals, getArgs, getFunction, getFunctionIRI, getFunctionName, getFunctionPrintName, getFunctionSymbol, getOpName, isFunction
  - Methods inherited from class org.apache.jena.sparql.expr.ExprNode
    asVar, deepCopy, equals, equalsBySyntax, getConstant, getExpr, getExprVar, getGraphPattern, getVarName, getVarsMentioned, isConstant, isExpr, isGraphPattern, isSatisfied, isVariable, toString
  - Methods inherited from class java.lang.Object
    getClass, notify, notifyAll, wait, wait, wait

- Method Detail
  - eval
```
public NodeValue eval(FunctionEnv env)
```
    Specified by:
    
    eval in class ExprFunction0