org.eclipse.rdf4j.query.algebra.Var.isAnonymous()方法的使用及代码示例

x33g5p2x  于2022-02-01 转载在 其他  
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本文整理了Java中org.eclipse.rdf4j.query.algebra.Var.isAnonymous()方法的一些代码示例，展示了Var.isAnonymous()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。Var.isAnonymous()方法的具体详情如下：
包路径：org.eclipse.rdf4j.query.algebra.Var
类名称：Var
方法名：isAnonymous

Var.isAnonymous介绍

暂无

代码示例

代码示例来源：origin: de.tudarmstadt.ukp.inception.rdf4j/rdf4j-queryalgebra-evaluation

@Override
  public void meet(Var var) {
    if (!var.isAnonymous()) {
      varNames.add(var.getName());
    }
  }
}

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

@Override
  public void meet(Var var) {
    if (!var.isAnonymous()) {
      varNames.add(var.getName());
    }
  }
}

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

@Override
public void meet(Var node)
  throws RuntimeException
{
  // take only real vars, i.e. ignore blank nodes
  if (!node.hasValue() && !node.isAnonymous()) {
    res.add(node.getName());
  }
}

代码示例来源：origin: eclipse/rdf4j

@Override
public void meet(Var node)
  throws RuntimeException
{
  // take only real vars, i.e. ignore blank nodes
  if (!node.hasValue() && !node.isAnonymous()) {
    res.add(node.getName());
  }
}

代码示例来源：origin: apache/incubator-rya

/**
   * Whether any of the possible consequents of this rule include anonymous
   * variables. Care should be taken when executing such rules, so that
   * repeated application doesn't continually produce new bnodes.
   * @return true if any subject, predicate, or object variable involved in a
   *      consequent is flagged as anonymous.
   */
  public boolean hasAnonymousConsequent() {
    for (StatementPattern sp : getConsequentPatterns()) {
      if (sp.getSubjectVar().isAnonymous()
          || sp.getPredicateVar().isAnonymous()
          || sp.getObjectVar().isAnonymous()) {
        return true;
      }
    }
    return false;
  }
}

代码示例来源：origin: eclipse/rdf4j

@Override
public boolean equals(Object other) {
  if (other instanceof Var) {
    Var o = (Var)other;
    return name.equals(o.getName()) && nullEquals(value, o.getValue())
        && anonymous == o.isAnonymous();
  }
  return false;
}

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

@Override
public boolean equals(Object other) {
  if (other instanceof Var) {
    Var o = (Var)other;
    return name.equals(o.getName()) && nullEquals(value, o.getValue())
        && anonymous == o.isAnonymous();
  }
  return false;
}

代码示例来源：origin: apache/incubator-rya

public ConstructProjection(Var subjectVar, Var predicateVar, Var objectVar) {
  Preconditions.checkNotNull(subjectVar);
  Preconditions.checkNotNull(predicateVar);
  Preconditions.checkNotNull(objectVar);
  subjName = VarNameUtils.createSimpleConstVarName(subjectVar);
  predName = VarNameUtils.createSimpleConstVarName(predicateVar);
  objName = VarNameUtils.createSimpleConstVarName(objectVar);
  Preconditions.checkNotNull(subjName);
  Preconditions.checkNotNull(predName);
  Preconditions.checkNotNull(objName);
  this.subjVar = subjectVar;
  this.predVar = predicateVar;
  this.objVar = objectVar;
  if ((subjVar.isAnonymous() || VarNameUtils.isAnonymous(subjName)) && subjectVar.getValue() == null) {
    subjValue = Optional.of(VF.createBNode(""));
  } else {
    subjValue = Optional.ofNullable(subjectVar.getValue());
  }
  predValue = Optional.ofNullable(predicateVar.getValue());
  objValue = Optional.ofNullable(objectVar.getValue());
}

代码示例来源：origin: eclipse/rdf4j

/**
 * @inheritDoc
 */
@Override
public void meet(Var theVar)
  throws Exception
{
  if (theVar.isAnonymous() && !theVar.hasValue()) {
    mBuffer.append("?").append(BaseTupleExprRenderer.scrubVarName(theVar.getName()));
  }
  else if (theVar.hasValue()) {
    mBuffer.append(RenderUtils.getSPARQLQueryString(theVar.getValue()));
  }
  else {
    mBuffer.append("?").append(theVar.getName());
  }
}

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

/**
 * @inheritDoc
 */
@Override
public void meet(Var theVar)
  throws Exception
{
  if (theVar.isAnonymous() && !theVar.hasValue()) {
    mBuffer.append("?").append(BaseTupleExprRenderer.scrubVarName(theVar.getName()));
  }
  else if (theVar.hasValue()) {
    mBuffer.append(RenderUtils.getSPARQLQueryString(theVar.getValue()));
  }
  else {
    mBuffer.append("?").append(theVar.getName());
  }
}

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

/**
 * @inheritDoc
 */
@Override
public void meet(Var theVar)
  throws Exception
{
  if (theVar.isAnonymous() && !theVar.hasValue()) {
    mBuffer.append("?").append(BaseTupleExprRenderer.scrubVarName(theVar.getName()));
  }
  else if (theVar.hasValue()) {
    mBuffer.append(RenderUtils.getSPARQLQueryString(theVar.getValue()));
  }
  else {
    mBuffer.append("?").append(theVar.getName());
  }
}

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

/**
 * @inheritDoc
 */
@Override
public void meet(Var theVar)
  throws Exception
{
  if (theVar.isAnonymous() && !theVar.hasValue()) {
    mBuffer.append(BaseTupleExprRenderer.scrubVarName(theVar.getName().substring(1)));
  }
  else if (theVar.hasValue()) {
    mBuffer.append(RenderUtils.getSerqlQueryString(theVar.getValue()));
  }
  else {
    mBuffer.append(theVar.getName());
  }
}

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

/**
 * @inheritDoc
 */
@Override
public void meet(Var theVar)
  throws Exception
{
  if (theVar.isAnonymous() && !theVar.hasValue()) {
    mBuffer.append(BaseTupleExprRenderer.scrubVarName(theVar.getName().substring(1)));
  }
  else if (theVar.hasValue()) {
    mBuffer.append(RenderUtils.getSerqlQueryString(theVar.getValue()));
  }
  else {
    mBuffer.append(theVar.getName());
  }
}

代码示例来源：origin: eclipse/rdf4j

/**
 * @inheritDoc
 */
@Override
public void meet(Var theVar)
  throws Exception
{
  if (theVar.isAnonymous() && !theVar.hasValue()) {
    mBuffer.append(BaseTupleExprRenderer.scrubVarName(theVar.getName().substring(1)));
  }
  else if (theVar.hasValue()) {
    mBuffer.append(RenderUtils.getSerqlQueryString(theVar.getValue()));
  }
  else {
    mBuffer.append(theVar.getName());
  }
}

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

@Override
public void meet(Var var) {
  if (toBeReplaced.equals(var) || (toBeReplaced.isAnonymous() && var.isAnonymous()
      && (toBeReplaced.hasValue() && toBeReplaced.getValue().equals(var.getValue()))))
  {
    QueryModelNode parent = var.getParentNode();
    parent.replaceChildNode(var, replacement);
    replacement.setParentNode(parent);
  }
  else if (replaceAnons && var.isAnonymous() && !var.hasValue()) {
    Var replacementVar = createAnonVar("anon-replace-" + var.getName() + index);
    QueryModelNode parent = var.getParentNode();
    parent.replaceChildNode(var, replacementVar);
    replacementVar.setParentNode(parent);
  }
}

代码示例来源：origin: de.tudarmstadt.ukp.inception.rdf4j/rdf4j-queryalgebra-evaluation

@Override
public void meet(Var var) {
  if (toBeReplaced.equals(var) || (toBeReplaced.isAnonymous() && var.isAnonymous()
      && (toBeReplaced.hasValue() && toBeReplaced.getValue().equals(var.getValue()))))
  {
    QueryModelNode parent = var.getParentNode();
    parent.replaceChildNode(var, replacement);
    replacement.setParentNode(parent);
  }
  else if (replaceAnons && var.isAnonymous() && !var.hasValue()) {
    Var replacementVar = createAnonVar("anon-replace-" + var.getName() + index);
    QueryModelNode parent = var.getParentNode();
    parent.replaceChildNode(var, replacementVar);
    replacementVar.setParentNode(parent);
  }
}

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

@Override
public TupleExpr visit(ASTDeleteClause node, Object data)
  throws VisitorException
{
  TupleExpr result = (TupleExpr)data;
  // Collect construct triples
  GraphPattern parentGP = graphPattern;
  graphPattern = new GraphPattern();
  // inherit scope & context
  graphPattern.setStatementPatternScope(parentGP.getStatementPatternScope());
  graphPattern.setContextVar(parentGP.getContextVar());
  for (int i = 0; i < node.jjtGetNumChildren(); i++) {
    node.jjtGetChild(i).jjtAccept(this, data);
  }
  TupleExpr deleteExpr = graphPattern.buildTupleExpr();
  // FIXME we should adapt the grammar so we can avoid doing this in
  // post-processing.
  VarCollector collector = new VarCollector();
  deleteExpr.visit(collector);
  for (Var var : collector.getCollectedVars()) {
    if (var.isAnonymous() && !var.hasValue()) {
      // blank node in delete pattern, not allowed by SPARQL spec.
      throw new VisitorException("DELETE clause may not contain blank nodes");
    }
  }
  graphPattern = parentGP;
  return deleteExpr;
}

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

@Override
public TupleExpr visit(ASTDeleteClause node, Object data)
  throws VisitorException
{
  TupleExpr result = (TupleExpr)data;
  // Collect construct triples
  GraphPattern parentGP = graphPattern;
  graphPattern = new GraphPattern();
  // inherit scope & context
  graphPattern.setStatementPatternScope(parentGP.getStatementPatternScope());
  graphPattern.setContextVar(parentGP.getContextVar());
  for (int i = 0; i < node.jjtGetNumChildren(); i++) {
    node.jjtGetChild(i).jjtAccept(this, data);
  }
  TupleExpr deleteExpr = graphPattern.buildTupleExpr();
  // FIXME we should adapt the grammar so we can avoid doing this in
  // post-processing.
  VarCollector collector = new VarCollector();
  deleteExpr.visit(collector);
  for (Var var : collector.getCollectedVars()) {
    if (var.isAnonymous() && !var.hasValue()) {
      // blank node in delete pattern, not allowed by SPARQL spec.
      throw new VisitorException("DELETE clause may not contain blank nodes");
    }
  }
  graphPattern = parentGP;
  return deleteExpr;
}

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

@Override
public Modify visit(ASTDeleteWhere node, Object data)
  throws VisitorException
{
  // Collect delete clause triples
  GraphPattern parentGP = graphPattern;
  graphPattern = new GraphPattern();
  // inherit scope & context
  graphPattern.setStatementPatternScope(parentGP.getStatementPatternScope());
  graphPattern.setContextVar(parentGP.getContextVar());
  for (int i = 0; i < node.jjtGetNumChildren(); i++) {
    node.jjtGetChild(i).jjtAccept(this, data);
  }
  TupleExpr whereExpr = graphPattern.buildTupleExpr();
  graphPattern = parentGP;
  TupleExpr deleteExpr = whereExpr.clone();
  // FIXME we should adapt the grammar so we can avoid doing this
  // post-processing.
  VarCollector collector = new VarCollector();
  deleteExpr.visit(collector);
  for (Var var : collector.getCollectedVars()) {
    if (var.isAnonymous() && !var.hasValue()) {
      throw new VisitorException("DELETE WHERE may not contain blank nodes");
    }
  }
  Modify modify = new Modify(deleteExpr, null, whereExpr);
  return modify;
}

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

@Override
public Modify visit(ASTDeleteWhere node, Object data)
  throws VisitorException
{
  // Collect delete clause triples
  GraphPattern parentGP = graphPattern;
  graphPattern = new GraphPattern();
  // inherit scope & context
  graphPattern.setStatementPatternScope(parentGP.getStatementPatternScope());
  graphPattern.setContextVar(parentGP.getContextVar());
  for (int i = 0; i < node.jjtGetNumChildren(); i++) {
    node.jjtGetChild(i).jjtAccept(this, data);
  }
  TupleExpr whereExpr = graphPattern.buildTupleExpr();
  graphPattern = parentGP;
  TupleExpr deleteExpr = whereExpr.clone();
  // FIXME we should adapt the grammar so we can avoid doing this
  // post-processing.
  VarCollector collector = new VarCollector();
  deleteExpr.visit(collector);
  for (Var var : collector.getCollectedVars()) {
    if (var.isAnonymous() && !var.hasValue()) {
      throw new VisitorException("DELETE WHERE may not contain blank nodes");
    }
  }
  Modify modify = new Modify(deleteExpr, null, whereExpr);
  return modify;
}

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