org.eclipse.rdf4j.model.util.Models.objectString()方法的使用及代码示例

x33g5p2x  于2022-01-25 转载在 其他  
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本文整理了Java中org.eclipse.rdf4j.model.util.Models.objectString()方法的一些代码示例,展示了Models.objectString()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。Models.objectString()方法的具体详情如下:
包路径:org.eclipse.rdf4j.model.util.Models
类名称:Models
方法名:objectString

Models.objectString介绍

[英]Retrieves an object value as a String from the statements in the given model. If more than one possible object value exists, any one value is picked and returned.
[中]从给定模型中的语句中以字符串形式检索对象值。如果存在多个可能的对象值,则拾取并返回任意一个值。

代码示例

代码示例来源:origin: eclipse/rdf4j

/**
 * Retrieve a property value as a String for the supplied subject from the given model. If more
 * than one property value exists, any one value is picked and returned.
 *
 * @param m
 *         the model from which to retrieve an object value.
 * @param subject
 *         the subject resource for which to retrieve a property literal value.
 * @param property
 *         the property for which to retrieve a value.
 * @param contexts
 *         the contexts from which to retrieve the property value. Optional vararg argument. If not
 *         specified the operations works on the entire Model.
 * @return a property value String from the given model, or {@link Optional#empty()} if no such value exists.
 */
public static Optional<String> getPropertyString(Model m, Resource subject, IRI property,
    Resource... contexts)
{
  Objects.requireNonNull(m, "model may not be null");
  Objects.requireNonNull(subject, "subject may not be null");
  Objects.requireNonNull(property, "property may not be null");
  return objectString(m.filter(subject, property, null, contexts));
}

代码示例来源:origin: org.eclipse.rdf4j/rdf4j-client

/**
 * Retrieve a property value as a String for the supplied subject from the given model. If more
 * than one property value exists, any one value is picked and returned.
 *
 * @param m
 *         the model from which to retrieve an object value.
 * @param subject
 *         the subject resource for which to retrieve a property literal value.
 * @param property
 *         the property for which to retrieve a value.
 * @param contexts
 *         the contexts from which to retrieve the property value. Optional vararg argument. If not
 *         specified the operations works on the entire Model.
 * @return a property value String from the given model, or {@link Optional#empty()} if no such value exists.
 */
public static Optional<String> getPropertyString(Model m, Resource subject, IRI property,
    Resource... contexts)
{
  Objects.requireNonNull(m, "model may not be null");
  Objects.requireNonNull(subject, "subject may not be null");
  Objects.requireNonNull(property, "property may not be null");
  return objectString(m.filter(subject, property, null, contexts));
}

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