本文整理了Java中org.apache.calcite.util.Util.needToImplement()方法的一些代码示例，展示了Util.needToImplement()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。Util.needToImplement()方法的具体详情如下：
包路径：org.apache.calcite.util.Util
类名称：Util
方法名：needToImplement

Util.needToImplement介绍

[英]Returns a java.lang.RuntimeException indicating that a particular feature has not been implemented, but should be.

If every 'hole' in our functionality uses this method, it will be easier for us to identity the holes. Throwing a java.lang.UnsupportedOperationException isn't as good, because sometimes we actually want to partially implement an API.

Example usage:

class MyVisitor extends BaseVisitor { 
void accept(Foo foo) { 
// Exception will identify which subclass forgot to override 
// this method 
throw Util.needToImplement(this); 
} 
}

[中]返回一个java。lang.RuntimeException指示特定功能尚未实现，但应该实现。
如果我们的功能中的每个“漏洞”都使用这种方法，我们就更容易识别漏洞。扔爪哇。UnsupportedOperationException并没有那么好，因为有时我们实际上想要部分实现一个API。
用法示例：

class MyVisitor extends BaseVisitor { 
void accept(Foo foo) { 
// Exception will identify which subclass forgot to override 
// this method 
throw Util.needToImplement(this); 
} 
}

代码示例

代码示例来源：origin: apache/flink

@Override public Void visit(SqlIntervalQualifier intervalQualifier) {
    throw Util.needToImplement(intervalQualifier);
  }
}

代码示例来源：origin: apache/flink

@Override public Void visit(SqlNodeList nodeList) {
  throw Util.needToImplement(nodeList);
}

代码示例来源：origin: apache/flink

@Override public Void visit(SqlDynamicParam param) {
  throw Util.needToImplement(param);
}

代码示例来源：origin: apache/flink

@Override public Void visit(SqlDataTypeSpec type) {
  throw Util.needToImplement(type);
}

代码示例来源：origin: apache/flink

public RelDataType getValidatedNodeType(SqlNode node) {
  RelDataType type = getValidatedNodeTypeIfKnown(node);
  if (type == null) {
    throw Util.needToImplement(node);
  } else {
    return type;
  }
}

代码示例来源：origin: apache/flink

public RelDataType visit(SqlNodeList nodeList) {
  // Operand is of a type that we can't derive a type for. If the
  // operand is of a peculiar type, such as a SqlNodeList, then you
  // should override the operator's validateCall() method so that it
  // doesn't try to validate that operand as an expression.
  throw Util.needToImplement(nodeList);
}

代码示例来源：origin: apache/flink

for (SqlNode operand : operands) {
  if (!(operand.getKind() == SqlKind.ROW)) {
    throw Util.needToImplement(
      "Values function where operands are scalars");

代码示例来源：origin: Qihoo360/Quicksql

public void unparse(
   SqlWriter writer,
   SqlOperator operator,
   SqlCall call,
   int leftPrec,
   int rightPrec) {
  // You probably need to override the operator's unparse
  // method.
  throw Util.needToImplement(this);
 }
},

代码示例来源：origin: Qihoo360/Quicksql

public void addListener(RelOptListener newListener) {
 // TODO jvs 6-Apr-2006:  new superclass AbstractRelOptPlanner
 // now defines a multicast listener; just need to hook it in
 if (listener != null) {
  throw Util.needToImplement("multiple VolcanoPlanner listeners");
 }
 listener = newListener;
}

代码示例来源：origin: org.apache.calcite/calcite-core

public void unparse(
   SqlWriter writer,
   SqlOperator operator,
   SqlCall call,
   int leftPrec,
   int rightPrec) {
  // You probably need to override the operator's unparse
  // method.
  throw Util.needToImplement(this);
 }
},

代码示例来源：origin: Qihoo360/Quicksql

public Iterator<IntPair> iterator() {
  throw Util.needToImplement(this);
 }
}

代码示例来源：origin: org.apache.calcite/calcite-core

public void addListener(RelOptListener newListener) {
 // TODO jvs 6-Apr-2006:  new superclass AbstractRelOptPlanner
 // now defines a multicast listener; just need to hook it in
 if (listener != null) {
  throw Util.needToImplement("multiple VolcanoPlanner listeners");
 }
 listener = newListener;
}

代码示例来源：origin: Qihoo360/Quicksql

public RelDataType getValidatedNodeType(SqlNode node) {
 RelDataType type = getValidatedNodeTypeIfKnown(node);
 if (type == null) {
  throw Util.needToImplement(node);
 } else {
  return type;
 }
}

代码示例来源：origin: org.apache.calcite/calcite-core

public RelDataType getValidatedNodeType(SqlNode node) {
 RelDataType type = getValidatedNodeTypeIfKnown(node);
 if (type == null) {
  throw Util.needToImplement(node);
 } else {
  return type;
 }
}

代码示例来源：origin: org.apache.kylin/atopcalcite

/**
 * Returns the type inferred for a dynamic parameter.
 *
 * @param index 0-based index of dynamic parameter
 * @return inferred type, never null
 */
public RelDataType getDynamicParamType(int index) {
 SqlNode sqlNode = dynamicParamSqlNodes.get(index);
 if (sqlNode == null) {
  throw Util.needToImplement("dynamic param type inference");
 }
 return validator.getValidatedNodeType(sqlNode);
}

代码示例来源：origin: Qihoo360/Quicksql

public RexNode convertCall(SqlRexContext cx, SqlCall call) {
 final SqlRexConvertlet convertlet = convertletTable.get(call);
 if (convertlet != null) {
  return convertlet.convertCall(cx, call);
 }
 // No convertlet was suitable. (Unlikely, because the standard
 // convertlet table has a fall-back for all possible calls.)
 throw Util.needToImplement(call);
}

代码示例来源：origin: Qihoo360/Quicksql

public RelDataType visit(SqlNodeList nodeList) {
 // Operand is of a type that we can't derive a type for. If the
 // operand is of a peculiar type, such as a SqlNodeList, then you
 // should override the operator's validateCall() method so that it
 // doesn't try to validate that operand as an expression.
 throw Util.needToImplement(nodeList);
}

代码示例来源：origin: org.apache.calcite/calcite-core

public RelDataType visit(SqlNodeList nodeList) {
 // Operand is of a type that we can't derive a type for. If the
 // operand is of a peculiar type, such as a SqlNodeList, then you
 // should override the operator's validateCall() method so that it
 // doesn't try to validate that operand as an expression.
 throw Util.needToImplement(nodeList);
}

代码示例来源：origin: Qihoo360/Quicksql

public void rewriteRel(LogicalAggregate rel) {
 RelDataType inputType = rel.getInput().getRowType();
 for (RelDataTypeField field : inputType.getFieldList()) {
  if (field.getType().isStruct()) {
   // TODO jvs 10-Feb-2005
   throw Util.needToImplement("aggregation on structured types");
  }
 }
 rewriteGeneric(rel);
}

代码示例来源：origin: org.apache.calcite/calcite-core

public void rewriteRel(LogicalAggregate rel) {
 RelDataType inputType = rel.getInput().getRowType();
 for (RelDataTypeField field : inputType.getFieldList()) {
  if (field.getType().isStruct()) {
   // TODO jvs 10-Feb-2005
   throw Util.needToImplement("aggregation on structured types");
  }
 }
 rewriteGeneric(rel);
}