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public interface ExpressionEvaluator
Wrapper around the OGNL library.
Method Summary | |
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boolean |
isConstant(java.lang.String expression)
Returns true if the expression evaluates to a constant or other literal value. |
java.lang.Object |
read(java.lang.Object target,
java.lang.String expression)
Reads a property of the target, defined by the expression. |
java.lang.Object |
readCompiled(java.lang.Object target,
java.lang.Object expression)
Reads a property of the target, defined by the (previously compiled) expression. |
void |
write(java.lang.Object target,
java.lang.String expression,
java.lang.Object value)
Updates a property of the target, defined by the expression. |
void |
writeCompiled(java.lang.Object target,
java.lang.Object expression,
java.lang.Object value)
Updates a property of the target, defined by the (previously compiled) expression. |
Method Detail |
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java.lang.Object read(java.lang.Object target, java.lang.String expression)
org.apache.hivemind.ApplicationRuntimeException
- if the expression can not be parsed, or if some other error occurs during
evaluation of the expression.java.lang.Object readCompiled(java.lang.Object target, java.lang.Object expression)
org.apache.hivemind.ApplicationRuntimeException
- if some other error occurs during evaluation of the expression.void write(java.lang.Object target, java.lang.String expression, java.lang.Object value)
org.apache.hivemind.ApplicationRuntimeException
- if the expression can not be parsed, or if some other error occurs during
evaluation of the expression.void writeCompiled(java.lang.Object target, java.lang.Object expression, java.lang.Object value)
org.apache.hivemind.ApplicationRuntimeException
- if some other error occurs during evaluation of the expression.boolean isConstant(java.lang.String expression)
org.apache.hivemind.ApplicationRuntimeException
- if the expression is not valid
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