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Placeholder.java
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Placeholder.java
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/*
* Copyright (c) 2021 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.placeholders;
import java.util.List;
/**
* Definition of a placeholder expression in the format {@code prefix:name}.
*
* @param <T> the type which is required to resolve a placeholder
*/
public interface Placeholder<T> extends Expression {
/**
* Resolves the placeholder variable by name.
*
* @param placeholderSource the source from which to the placeholder is resolved, e.g. a Thing id.
* @param name the placeholder variable name (i. e., the part after ':').
* @return All values this placeholder resolved for the given placeholder source and the given variable name.
* @since 2.4.0
*/
List<String> resolveValues(T placeholderSource, String name);
}