public interface  org.apache.drill.common.expression.fn.FuncHolder extends java.lang.Object
{
public abstract boolean isNested();
public abstract org.apache.drill.common.expression.FunctionHolderExpression getExpr(java.lang.String, java.util.List, org.apache.drill.common.expression.ExpressionPosition);
public abstract int getParamCount();
public abstract org.apache.drill.common.types.TypeProtos$MajorType getParamMajorType(int);
public abstract boolean isComplexWriterFuncHolder();
}