本文整理了Java中com.mxgraph.view.mxGraph.getEdgeValidationError()方法的一些代码示例，展示了mxGraph.getEdgeValidationError()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。mxGraph.getEdgeValidationError()方法的具体详情如下：
包路径：com.mxgraph.view.mxGraph
类名称：mxGraph
方法名：getEdgeValidationError

mxGraph.getEdgeValidationError介绍

[英]Returns the validation error message to be displayed when inserting or changing an edges' connectivity. A return value of null means the edge is valid, a return value of '' means it's not valid, but do not display an error message. Any other (non-empty) string returned from this method is displayed as an error message when trying to connect an edge to a source and target. This implementation uses the multiplicities, as well as multigraph and allowDanglingEdges to generate validation errors.
[中]

代码示例

代码示例来源：origin: com.github.vlsi.mxgraph/jgraphx

/**
 * Checks if the return value of getEdgeValidationError for the given
 * arguments is null.
 * 
 * @param edge Cell that represents the edge to validate.
 * @param source Cell that represents the source terminal.
 * @param target Cell that represents the target terminal.
 */
public boolean isEdgeValid(Object edge, Object source, Object target)
{
  return getEdgeValidationError(edge, source, target) == null;
}

代码示例来源：origin: org.tinyjee.jgraphx/jgraphx

/**
 * Checks if the return value of getEdgeValidationError for the given
 * arguments is null.
 * 
 * @param edge Cell that represents the edge to validate.
 * @param source Cell that represents the source terminal.
 * @param target Cell that represents the target terminal.
 */
public boolean isEdgeValid(Object edge, Object source, Object target)
{
  return getEdgeValidationError(edge, source, target) == null;
}

代码示例来源：origin: com.github.vlsi.mxgraph/jgraphx

/**
 * Returns the error message or an empty string if the connection for the
 * given source target pair is not valid. Otherwise it returns null.
 */
public String validateConnection(Object source, Object target)
{
  return graphComponent.getGraph().getEdgeValidationError(
      state.getCell(), source, target);
}

代码示例来源：origin: org.tinyjee.jgraphx/jgraphx

/**
 * Returns the error message or an empty string if the connection for the
 * given source target pair is not valid. Otherwise it returns null.
 */
public String validateConnection(Object source, Object target)
{
  return graphComponent.getGraph().getEdgeValidationError(
      state.getCell(), source, target);
}

代码示例来源：origin: org.tinyjee.jgraphx/jgraphx

/**
 * Returns the error message or an empty string if the connection for the
 * given source target pair is not valid. Otherwise it returns null.
 */
public String validateConnection(Object source, Object target)
{
  if (target == null && createTarget)
  {
    return null;
  }
  if (!isValidTarget(target))
  {
    return "";
  }
  return graphComponent.getGraph().getEdgeValidationError(
      connectPreview.getPreviewState().getCell(), source, target);
}

代码示例来源：origin: com.github.vlsi.mxgraph/jgraphx

/**
 * Returns the error message or an empty string if the connection for the
 * given source target pair is not valid. Otherwise it returns null.
 */
public String validateConnection(Object source, Object target)
{
  if (target == null && createTarget)
  {
    return null;
  }
  if (!isValidTarget(target))
  {
    return "";
  }
  return graphComponent.getGraph().getEdgeValidationError(
      connectPreview.getPreviewState().getCell(), source, target);
}

代码示例来源：origin: org.activecomponents.jadex/jadex-editor-bpmn

Object target)
String error = super.getEdgeValidationError(edge, source, target);
if (error == null)

代码示例来源：origin: org.tinyjee.jgraphx/jgraphx

String tmp = graph.getEdgeValidationError(cell,
    model.getTerminal(cell, true),
    model.getTerminal(cell, false));

代码示例来源：origin: com.github.vlsi.mxgraph/jgraphx

String tmp = graph.getEdgeValidationError(cell,
    model.getTerminal(cell, true),
    model.getTerminal(cell, false));

代码示例来源：origin: com.github.vlsi.mxgraph/jgraphx

/**
 * Returns true if split is enabled and the given edge may be splitted into
 * two edges with the given cell as a new terminal between the two.
 * 
 * @param target Object that represents the edge to be splitted.
 * @param cells Array of cells to add into the given edge.
 * @return Returns true if the given edge may be splitted by the given
 * cell.
 */
public boolean isSplitTarget(Object target, Object[] cells)
{
  if (target != null && cells != null && cells.length == 1)
  {
    Object src = model.getTerminal(target, true);
    Object trg = model.getTerminal(target, false);
    return (model.isEdge(target)
        && isCellConnectable(cells[0])
        && getEdgeValidationError(target,
            model.getTerminal(target, true), cells[0]) == null
        && !model.isAncestor(cells[0], src) && !model.isAncestor(
        cells[0], trg));
  }
  return false;
}

代码示例来源：origin: org.tinyjee.jgraphx/jgraphx

/**
 * Returns true if split is enabled and the given edge may be splitted into
 * two edges with the given cell as a new terminal between the two.
 * 
 * @param target Object that represents the edge to be splitted.
 * @param cells Array of cells to add into the given edge.
 * @return Returns true if the given edge may be splitted by the given
 * cell.
 */
public boolean isSplitTarget(Object target, Object[] cells)
{
  if (target != null && cells != null && cells.length == 1)
  {
    Object src = model.getTerminal(target, true);
    Object trg = model.getTerminal(target, false);
    return (model.isEdge(target)
        && isCellConnectable(cells[0])
        && getEdgeValidationError(target,
            model.getTerminal(target, true), cells[0]) == null
        && !model.isAncestor(cells[0], src) && !model.isAncestor(
        cells[0], trg));
  }
  return false;
}

代码示例来源：origin: org.tinyjee.jgraphx/jgraphx

&& getEdgeValidationError(clones[i],
    model.getTerminal(clones[i], true),
    model.getTerminal(clones[i], false)) != null)

代码示例来源：origin: com.github.vlsi.mxgraph/jgraphx

&& getEdgeValidationError(clones[i],
    model.getTerminal(clones[i], true),
    model.getTerminal(clones[i], false)) != null)