https://github.com/spring-projects/spring-framework: Spring JDBC (Spring IO)
  • Juergen Hoeller 
public class org.springframework.jdbc.core.SingleColumnRowMapper<T> implements org.springframework.jdbc.core.RowMapper<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.springframework.jdbc.core.SingleColumnRowMapper
  super_class: java.lang.Object
{
  private java.lang.Class<?> requiredType;
    descriptor: Ljava/lang/Class;
    flags: (0x0002) ACC_PRIVATE
    Signature: Ljava/lang/Class<*>;
    RuntimeVisibleAnnotations: 
      org.springframework.lang.Nullable()

  private org.springframework.core.convert.ConversionService conversionService;
    descriptor: Lorg/springframework/core/convert/ConversionService;
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      org.springframework.lang.Nullable()

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
         0: .line 60
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 54
            aload 0 /* this */
            invokestatic org.springframework.core.convert.support.DefaultConversionService.getSharedInstance:()Lorg/springframework/core/convert/ConversionService;
            putfield org.springframework.jdbc.core.SingleColumnRowMapper.conversionService:Lorg/springframework/core/convert/ConversionService;
         2: .line 61
            return
        end local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/springframework/jdbc/core/SingleColumnRowMapper<TT;>;

  public void <init>(java.lang.Class<T>);
    descriptor: (Ljava/lang/Class;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
        start local 1 // java.lang.Class requiredType
         0: .line 69
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 54
            aload 0 /* this */
            invokestatic org.springframework.core.convert.support.DefaultConversionService.getSharedInstance:()Lorg/springframework/core/convert/ConversionService;
            putfield org.springframework.jdbc.core.SingleColumnRowMapper.conversionService:Lorg/springframework/core/convert/ConversionService;
         2: .line 70
            aload 0 /* this */
            aload 1 /* requiredType */
            invokevirtual org.springframework.jdbc.core.SingleColumnRowMapper.setRequiredType:(Ljava/lang/Class;)V
         3: .line 71
            return
        end local 1 // java.lang.Class requiredType
        end local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    4     0          this  Lorg/springframework/jdbc/core/SingleColumnRowMapper<TT;>;
            0    4     1  requiredType  Ljava/lang/Class<TT;>;
    Signature: (Ljava/lang/Class<TT;>;)V
    MethodParameters:
              Name  Flags
      requiredType  

  public void setRequiredType(java.lang.Class<T>);
    descriptor: (Ljava/lang/Class;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
        start local 1 // java.lang.Class requiredType
         0: .line 80
            aload 0 /* this */
            aload 1 /* requiredType */
            invokestatic org.springframework.util.ClassUtils.resolvePrimitiveIfNecessary:(Ljava/lang/Class;)Ljava/lang/Class;
            putfield org.springframework.jdbc.core.SingleColumnRowMapper.requiredType:Ljava/lang/Class;
         1: .line 81
            return
        end local 1 // java.lang.Class requiredType
        end local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    2     0          this  Lorg/springframework/jdbc/core/SingleColumnRowMapper<TT;>;
            0    2     1  requiredType  Ljava/lang/Class<TT;>;
    Signature: (Ljava/lang/Class<TT;>;)V
    MethodParameters:
              Name  Flags
      requiredType  

  public void setConversionService(org.springframework.core.convert.ConversionService);
    descriptor: (Lorg/springframework/core/convert/ConversionService;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
        start local 1 // org.springframework.core.convert.ConversionService conversionService
         0: .line 90
            aload 0 /* this */
            aload 1 /* conversionService */
            putfield org.springframework.jdbc.core.SingleColumnRowMapper.conversionService:Lorg/springframework/core/convert/ConversionService;
         1: .line 91
            return
        end local 1 // org.springframework.core.convert.ConversionService conversionService
        end local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    2     0               this  Lorg/springframework/jdbc/core/SingleColumnRowMapper<TT;>;
            0    2     1  conversionService  Lorg/springframework/core/convert/ConversionService;
    RuntimeVisibleParameterAnnotations: 
      0:
        org.springframework.lang.Nullable()
    MethodParameters:
                   Name  Flags
      conversionService  

  public T mapRow(java.sql.ResultSet, );
    descriptor: (Ljava/sql/ResultSet;I)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=7, args_size=3
        start local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
        start local 1 // java.sql.ResultSet rs
        start local 2 // int rowNum
         0: .line 107
            aload 1 /* rs */
            invokeinterface java.sql.ResultSet.getMetaData:()Ljava/sql/ResultSetMetaData;
            astore 3 /* rsmd */
        start local 3 // java.sql.ResultSetMetaData rsmd
         1: .line 108
            aload 3 /* rsmd */
            invokeinterface java.sql.ResultSetMetaData.getColumnCount:()I
            istore 4 /* nrOfColumns */
        start local 4 // int nrOfColumns
         2: .line 109
            iload 4 /* nrOfColumns */
            iconst_1
            if_icmpeq 4
         3: .line 110
            new org.springframework.jdbc.IncorrectResultSetColumnCountException
            dup
            iconst_1
            iload 4 /* nrOfColumns */
            invokespecial org.springframework.jdbc.IncorrectResultSetColumnCountException.<init>:(II)V
            athrow
         4: .line 114
      StackMap locals: java.sql.ResultSetMetaData int
      StackMap stack:
            aload 0 /* this */
            aload 1 /* rs */
            iconst_1
            aload 0 /* this */
            getfield org.springframework.jdbc.core.SingleColumnRowMapper.requiredType:Ljava/lang/Class;
            invokevirtual org.springframework.jdbc.core.SingleColumnRowMapper.getColumnValue:(Ljava/sql/ResultSet;ILjava/lang/Class;)Ljava/lang/Object;
            astore 5 /* result */
        start local 5 // java.lang.Object result
         5: .line 115
            aload 5 /* result */
            ifnull 14
            aload 0 /* this */
            getfield org.springframework.jdbc.core.SingleColumnRowMapper.requiredType:Ljava/lang/Class;
            ifnull 14
            aload 0 /* this */
            getfield org.springframework.jdbc.core.SingleColumnRowMapper.requiredType:Ljava/lang/Class;
            aload 5 /* result */
            invokevirtual java.lang.Class.isInstance:(Ljava/lang/Object;)Z
            ifne 14
         6: .line 118
            aload 0 /* this */
            aload 5 /* result */
            aload 0 /* this */
            getfield org.springframework.jdbc.core.SingleColumnRowMapper.requiredType:Ljava/lang/Class;
            invokevirtual org.springframework.jdbc.core.SingleColumnRowMapper.convertValueToRequiredType:(Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;
         7: areturn
         8: .line 120
      StackMap locals: org.springframework.jdbc.core.SingleColumnRowMapper java.sql.ResultSet int java.sql.ResultSetMetaData int java.lang.Object
      StackMap stack: java.lang.IllegalArgumentException
            astore 6 /* ex */
        start local 6 // java.lang.IllegalArgumentException ex
         9: .line 121
            new org.springframework.dao.TypeMismatchDataAccessException
            dup
        10: .line 122
            new java.lang.StringBuilder
            dup
            ldc "Type mismatch affecting row number "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            iload 2 /* rowNum */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " and column type '"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
        11: .line 123
            aload 3 /* rsmd */
            iconst_1
            invokeinterface java.sql.ResultSetMetaData.getColumnTypeName:(I)Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc "': "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 6 /* ex */
            invokevirtual java.lang.IllegalArgumentException.getMessage:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
        12: .line 122
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
        13: .line 121
            invokespecial org.springframework.dao.TypeMismatchDataAccessException.<init>:(Ljava/lang/String;)V
            athrow
        end local 6 // java.lang.IllegalArgumentException ex
        14: .line 126
      StackMap locals:
      StackMap stack:
            aload 5 /* result */
            areturn
        end local 5 // java.lang.Object result
        end local 4 // int nrOfColumns
        end local 3 // java.sql.ResultSetMetaData rsmd
        end local 2 // int rowNum
        end local 1 // java.sql.ResultSet rs
        end local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0   15     0         this  Lorg/springframework/jdbc/core/SingleColumnRowMapper<TT;>;
            0   15     1           rs  Ljava/sql/ResultSet;
            0   15     2       rowNum  I
            1   15     3         rsmd  Ljava/sql/ResultSetMetaData;
            2   15     4  nrOfColumns  I
            5   15     5       result  Ljava/lang/Object;
            9   14     6           ex  Ljava/lang/IllegalArgumentException;
      Exception table:
        from    to  target  type
           6     7       8  Class java.lang.IllegalArgumentException
    Exceptions:
      throws java.sql.SQLException
    Signature: (Ljava/sql/ResultSet;I)TT;
    RuntimeVisibleAnnotations: 
      org.springframework.lang.Nullable()
    MethodParameters:
        Name  Flags
      rs      
      rowNum  

  protected  getColumnValue(java.sql.ResultSet, int, java.lang.Class<?>);
    descriptor: (Ljava/sql/ResultSet;ILjava/lang/Class;)Ljava/lang/Object;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=4, args_size=4
        start local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
        start local 1 // java.sql.ResultSet rs
        start local 2 // int index
        start local 3 // java.lang.Class requiredType
         0: .line 148
            aload 3 /* requiredType */
            ifnull 2
         1: .line 149
            aload 1 /* rs */
            iload 2 /* index */
            aload 3 /* requiredType */
            invokestatic org.springframework.jdbc.support.JdbcUtils.getResultSetValue:(Ljava/sql/ResultSet;ILjava/lang/Class;)Ljava/lang/Object;
            areturn
         2: .line 153
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* rs */
            iload 2 /* index */
            invokevirtual org.springframework.jdbc.core.SingleColumnRowMapper.getColumnValue:(Ljava/sql/ResultSet;I)Ljava/lang/Object;
            areturn
        end local 3 // java.lang.Class requiredType
        end local 2 // int index
        end local 1 // java.sql.ResultSet rs
        end local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    3     0          this  Lorg/springframework/jdbc/core/SingleColumnRowMapper<TT;>;
            0    3     1            rs  Ljava/sql/ResultSet;
            0    3     2         index  I
            0    3     3  requiredType  Ljava/lang/Class<*>;
    Exceptions:
      throws java.sql.SQLException
    Signature: (Ljava/sql/ResultSet;ILjava/lang/Class<*>;)Ljava/lang/Object;
    RuntimeVisibleAnnotations: 
      org.springframework.lang.Nullable()
    RuntimeVisibleParameterAnnotations: 
      0:
      1:
      2:
        org.springframework.lang.Nullable()
    MethodParameters:
              Name  Flags
      rs            
      index         
      requiredType  

  protected java.lang.Object getColumnValue(java.sql.ResultSet, int);
    descriptor: (Ljava/sql/ResultSet;I)Ljava/lang/Object;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
        start local 1 // java.sql.ResultSet rs
        start local 2 // int index
         0: .line 173
            aload 1 /* rs */
            iload 2 /* index */
            invokestatic org.springframework.jdbc.support.JdbcUtils.getResultSetValue:(Ljava/sql/ResultSet;I)Ljava/lang/Object;
            areturn
        end local 2 // int index
        end local 1 // java.sql.ResultSet rs
        end local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lorg/springframework/jdbc/core/SingleColumnRowMapper<TT;>;
            0    1     1     rs  Ljava/sql/ResultSet;
            0    1     2  index  I
    Exceptions:
      throws java.sql.SQLException
    RuntimeVisibleAnnotations: 
      org.springframework.lang.Nullable()
    MethodParameters:
       Name  Flags
      rs     
      index  

  protected  convertValueToRequiredType(, java.lang.Class<?>);
    descriptor: (Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=3, args_size=3
        start local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
        start local 1 // java.lang.Object value
        start local 2 // java.lang.Class requiredType
         0: .line 194
            ldc Ljava/lang/String;
            aload 2 /* requiredType */
            if_acmpne 2
         1: .line 195
            aload 1 /* value */
            invokevirtual java.lang.Object.toString:()Ljava/lang/String;
            areturn
         2: .line 197
      StackMap locals:
      StackMap stack:
            ldc Ljava/lang/Number;
            aload 2 /* requiredType */
            invokevirtual java.lang.Class.isAssignableFrom:(Ljava/lang/Class;)Z
            ifeq 6
         3: .line 198
            aload 1 /* value */
            instanceof java.lang.Number
            ifeq 5
         4: .line 200
            aload 1 /* value */
            checkcast java.lang.Number
            aload 2 /* requiredType */
            invokestatic org.springframework.util.NumberUtils.convertNumberToTargetClass:(Ljava/lang/Number;Ljava/lang/Class;)Ljava/lang/Number;
            areturn
         5: .line 204
      StackMap locals:
      StackMap stack:
            aload 1 /* value */
            invokevirtual java.lang.Object.toString:()Ljava/lang/String;
            aload 2 /* requiredType */
            invokestatic org.springframework.util.NumberUtils.parseNumber:(Ljava/lang/String;Ljava/lang/Class;)Ljava/lang/Number;
            areturn
         6: .line 207
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.springframework.jdbc.core.SingleColumnRowMapper.conversionService:Lorg/springframework/core/convert/ConversionService;
            ifnull 8
            aload 0 /* this */
            getfield org.springframework.jdbc.core.SingleColumnRowMapper.conversionService:Lorg/springframework/core/convert/ConversionService;
            aload 1 /* value */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            aload 2 /* requiredType */
            invokeinterface org.springframework.core.convert.ConversionService.canConvert:(Ljava/lang/Class;Ljava/lang/Class;)Z
            ifeq 8
         7: .line 208
            aload 0 /* this */
            getfield org.springframework.jdbc.core.SingleColumnRowMapper.conversionService:Lorg/springframework/core/convert/ConversionService;
            aload 1 /* value */
            aload 2 /* requiredType */
            invokeinterface org.springframework.core.convert.ConversionService.convert:(Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;
            areturn
         8: .line 211
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
         9: .line 212
            new java.lang.StringBuilder
            dup
            ldc "Value ["
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* value */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            ldc "] is of type ["
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 1 /* value */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokevirtual java.lang.Class.getName:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
        10: .line 213
            ldc "] and cannot be converted to required type ["
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 2 /* requiredType */
            invokevirtual java.lang.Class.getName:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc "]"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
        11: .line 212
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
        12: .line 211
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 2 // java.lang.Class requiredType
        end local 1 // java.lang.Object value
        end local 0 // org.springframework.jdbc.core.SingleColumnRowMapper this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0   13     0          this  Lorg/springframework/jdbc/core/SingleColumnRowMapper<TT;>;
            0   13     1         value  Ljava/lang/Object;
            0   13     2  requiredType  Ljava/lang/Class<*>;
    Signature: (Ljava/lang/Object;Ljava/lang/Class<*>;)Ljava/lang/Object;
    RuntimeVisibleAnnotations: 
      org.springframework.lang.Nullable()
    MethodParameters:
              Name  Flags
      value         
      requiredType  

  public static <T> org.springframework.jdbc.core.SingleColumnRowMapper<T> newInstance(java.lang.Class<T>);
    descriptor: (Ljava/lang/Class;)Lorg/springframework/jdbc/core/SingleColumnRowMapper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.lang.Class requiredType
         0: .line 225
            new org.springframework.jdbc.core.SingleColumnRowMapper
            dup
            aload 0 /* requiredType */
            invokespecial org.springframework.jdbc.core.SingleColumnRowMapper.<init>:(Ljava/lang/Class;)V
            areturn
        end local 0 // java.lang.Class requiredType
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    1     0  requiredType  Ljava/lang/Class<TT;>;
    Signature: <T:Ljava/lang/Object;>(Ljava/lang/Class<TT;>;)Lorg/springframework/jdbc/core/SingleColumnRowMapper<TT;>;
    MethodParameters:
              Name  Flags
      requiredType  

  public static <T> org.springframework.jdbc.core.SingleColumnRowMapper<T> newInstance(java.lang.Class<T>, org.springframework.core.convert.ConversionService);
    descriptor: (Ljava/lang/Class;Lorg/springframework/core/convert/ConversionService;)Lorg/springframework/jdbc/core/SingleColumnRowMapper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // java.lang.Class requiredType
        start local 1 // org.springframework.core.convert.ConversionService conversionService
         0: .line 236
            aload 0 /* requiredType */
            invokestatic org.springframework.jdbc.core.SingleColumnRowMapper.newInstance:(Ljava/lang/Class;)Lorg/springframework/jdbc/core/SingleColumnRowMapper;
            astore 2 /* rowMapper */
        start local 2 // org.springframework.jdbc.core.SingleColumnRowMapper rowMapper
         1: .line 237
            aload 2 /* rowMapper */
            aload 1 /* conversionService */
            invokevirtual org.springframework.jdbc.core.SingleColumnRowMapper.setConversionService:(Lorg/springframework/core/convert/ConversionService;)V
         2: .line 238
            aload 2 /* rowMapper */
            areturn
        end local 2 // org.springframework.jdbc.core.SingleColumnRowMapper rowMapper
        end local 1 // org.springframework.core.convert.ConversionService conversionService
        end local 0 // java.lang.Class requiredType
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    3     0       requiredType  Ljava/lang/Class<TT;>;
            0    3     1  conversionService  Lorg/springframework/core/convert/ConversionService;
            1    3     2          rowMapper  Lorg/springframework/jdbc/core/SingleColumnRowMapper<TT;>;
    Signature: <T:Ljava/lang/Object;>(Ljava/lang/Class<TT;>;Lorg/springframework/core/convert/ConversionService;)Lorg/springframework/jdbc/core/SingleColumnRowMapper<TT;>;
    RuntimeVisibleParameterAnnotations: 
      0:
      1:
        org.springframework.lang.Nullable()
    MethodParameters:
                   Name  Flags
      requiredType       
      conversionService  
}
Signature: <T:Ljava/lang/Object;>Ljava/lang/Object;Lorg/springframework/jdbc/core/RowMapper<TT;>;
SourceFile: "SingleColumnRowMapper.java"