Query.java

package org.springframework.data.simpledb.annotation;

import java.lang.annotation.*;

/**
 * Annotation to declare finder queries directly on repository methods. <br/>
 * <br/>
 * 
 * Query Annotation used in Repository Metadata, can have three Types of Parameters <br/>
 * <p>
 * <b>value</b>: if value annotation is present, query string should be correct and well formatted
 * </p>
 * <p>
 * <b>select</b>: contains selective attributes, can be independent of the "where" clause; the Domain is inferred at
 * runtime based on Repository-Metadata
 * </p>
 * <p>
 * <b>where</b>: contains the WHERE clause, might contain parameter placeholders
 * </p>
 * 
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
@Documented
public @interface Query {

	/**
	 * Defines the SimpleDb query to be executed when the annotated method is called.
	 */
	String value() default "";

	String where() default "";

	String[] select() default "";

	public enum QueryClause {
		SELECT("select"), VALUE("value"), WHERE("where");

		private String queryClause;

		private QueryClause(String newValue) {
			this.queryClause = newValue;
		}

		public String getQueryClause() {
			return this.queryClause;
		}
	}
}