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Java based SQL templating project. Store your queries in *.sql files and build queries for execution. Supports simple expressions and conditional clauses and interface proxying for java-sql bridge.

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package com.jaregu.database.queries.compiling.expr;

import java.util.List;
import java.util.Map;

import com.jaregu.database.queries.building.ParametersResolver;

public interface Expression {

	ExpressionResult eval(ParametersResolver variableResolver);

	List getVariableNames();

	public interface ExpressionResult {

		Object getReturnValue();

		Map getOutputVariables();
	}
}