org.apache.solr.handler.dataimport
Class Evaluator

java.lang.Object
  org.apache.solr.handler.dataimport.Evaluator

public abstract class Evaluator
extends Object

Pluggable functions for resolving variables

Implementations of this abstract class must provide a public no-arg constructor.

Refer to http://wiki.apache.org/solr/DataImportHandler for more details.

This API is experimental and may change in the future.

Since:

solr 1.3

Constructor Summary

Evaluator()

Method Summary

abstract String

evaluate(String expression, Context context) Return a String after processing an expression and a VariableResolver

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Evaluator

public Evaluator()

Method Detail

evaluate

public abstract String evaluate(String expression,
                                Context context)

Return a String after processing an expression and a VariableResolver

Parameters:

expression - string to be evaluated

context - instance

Returns:

the value of the given expression evaluated using the resolver

See Also:

VariableResolver