public class Eval extends Object
This class is a simple helper on top of GroovyShell. You can use it to evaluate small Groovy scripts that don't need large Binding objects. For example, this script executes with no errors:
assert 10 == Eval.me(' 2 * 4 + 2') assert 10 == Eval.x(2, ' x * 4 + 2')
GroovyShell
Constructor and Description |
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Eval() |
Modifier and Type | Method and Description |
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static Object |
me(String expression)
Evaluates the specified String expression and returns the result.
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static Object |
me(String symbol,
Object object,
String expression)
Evaluates the specified String expression and makes the parameter available inside
the script, returning the result.
|
static Object |
x(Object x,
String expression)
Evaluates the specified String expression and makes the parameter available inside
the script bound to a variable named 'x', returning the result.
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static Object |
xy(Object x,
Object y,
String expression)
Evaluates the specified String expression and makes the first two parameters available inside
the script bound to variables named 'x' and 'y' respectively, returning the result.
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static Object |
xyz(Object x,
Object y,
Object z,
String expression)
Evaluates the specified String expression and makes the first three parameters available inside
the script bound to variables named 'x', 'y', and 'z' respectively, returning the result.
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public static Object me(String expression) throws CompilationFailedException
assert 10 == Eval.me(' 2 * 4 + 2')
expression
- the Groovy expression to evaluateCompilationFailedException
- if expression is not valid Groovypublic static Object me(String symbol, Object object, String expression) throws CompilationFailedException
assert 10 == Eval.me('x', 2, ' x * 4 + 2')
expression
- the Groovy expression to evaluateCompilationFailedException
- if expression is not valid Groovypublic static Object x(Object x, String expression) throws CompilationFailedException
assert 10 == Eval.x(2, ' x * 4 + 2')
expression
- the Groovy expression to evaluateCompilationFailedException
- if expression is not valid Groovypublic static Object xy(Object x, Object y, String expression) throws CompilationFailedException
assert 10 == Eval.xy(2, 4, ' x * y + 2')
expression
- the Groovy expression to evaluateCompilationFailedException
- if expression is not valid Groovypublic static Object xyz(Object x, Object y, Object z, String expression) throws CompilationFailedException
assert 10 == Eval.xyz(2, 4, 2, ' x * y + z')
expression
- the Groovy expression to evaluateCompilationFailedException
- if expression is not valid Groovy