Allow easy integration from Groovy into Java through convenience methods.
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')
| Type | Name and description |
|---|---|
static Object |
me(String expression)Evaluates the specified String expression and returns the result. |
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. |
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. |
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. |
Evaluates the specified String expression and returns the result. For example:
assert 10 == Eval.me(' 2 * 4 + 2')
expression - the Groovy expression to evaluateEvaluates the specified String expression and makes the parameter available inside the script, returning the result. For example, this code binds the 'x' variable:
assert 10 == Eval.me('x', 2, ' x * 4 + 2')
expression - the Groovy expression to evaluateEvaluates the specified String expression and makes the parameter available inside the script bound to a variable named 'x', returning the result. For example, this code executes without failure:
assert 10 == Eval.x(2, ' x * 4 + 2')
expression - the Groovy expression to evaluateEvaluates 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. For example, this code executes without failure:
assert 10 == Eval.xy(2, 4, ' x * y + 2')
expression - the Groovy expression to evaluateEvaluates 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. For example, this code executes without failure:
assert 10 == Eval.xyz(2, 4, 2, ' x * y + z')
expression - the Groovy expression to evaluate