java.lang.Object
- com.google.cloud.spanner.ForwardingStructReader

All Implemented Interfaces:

StructReader

Direct Known Subclasses:

ForwardingResultSet
```
public class ForwardingStructReader
extends Object
implements StructReader
```
Forwarding implements of StructReader

Constructor Summary

Constructors
Constructor Description

ForwardingStructReader(StructReader delegate)

ForwardingStructReader(com.google.common.base.Supplier<? extends StructReader> delegate)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`checkValidState()`	Called before each forwarding call to allow sub classes to do additional state checking.
`BigDecimal`	`getBigDecimal(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.numeric()`.
`BigDecimal`	`getBigDecimal(String columnName)`	Returns the value of a non-`NULL` column with type `Type.numeric()`.
`List<BigDecimal>`	`getBigDecimalList(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.numeric())`.
`List<BigDecimal>`	`getBigDecimalList(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.numeric())`.
`boolean`	`getBoolean(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.bool()`.
`boolean`	`getBoolean(String columnName)`	Returns the value of a non-`NULL` column with type `Type.bool()`.
`boolean[]`	`getBooleanArray(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.bool())`.
`boolean[]`	`getBooleanArray(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.bool())`.
`List<Boolean>`	`getBooleanList(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.bool())`.
`List<Boolean>`	`getBooleanList(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.bool())`.
`com.google.cloud.ByteArray`	`getBytes(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.bytes()`.
`com.google.cloud.ByteArray`	`getBytes(String columnName)`	Returns the value of a non-`NULL` column with type `Type.bytes()`.
`List<com.google.cloud.ByteArray>`	`getBytesList(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.bytes())`.
`List<com.google.cloud.ByteArray>`	`getBytesList(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.bytes())`.
`int`	`getColumnCount()`	Returns the number of columns in the underlying data.
`int`	`getColumnIndex(String columnName)`	Returns the index of the column named `columnName`.
`Type`	`getColumnType(int columnIndex)`	Returns the type of a column.
`Type`	`getColumnType(String columnName)`	Returns the type of a column.
`com.google.cloud.Date`	`getDate(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.date()`.
`com.google.cloud.Date`	`getDate(String columnName)`	Returns the value of a non-`NULL` column with type `Type.date()`.
`List<com.google.cloud.Date>`	`getDateList(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.date())`.
`List<com.google.cloud.Date>`	`getDateList(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.date())`.
`double`	`getDouble(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.float64()`.
`double`	`getDouble(String columnName)`	Returns the value of a non-`NULL` column with type `Type.float64()`.
`double[]`	`getDoubleArray(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.float64())`.
`double[]`	`getDoubleArray(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.float64())`.
`List<Double>`	`getDoubleList(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.float64())`.
`List<Double>`	`getDoubleList(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.float64())`.
`String`	`getJson(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.string()`.
`String`	`getJson(String columnName)`	Returns the value of a non-`NULL` column with type `Type.string()`.
`List<String>`	`getJsonList(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.string())`.
`List<String>`	`getJsonList(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.string())`.
`long`	`getLong(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.int64()`.
`long`	`getLong(String columnName)`	Returns the value of a non-`NULL` column with type `Type.int64()`.
`long[]`	`getLongArray(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.int64())`.
`long[]`	`getLongArray(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.int64())`.
`List<Long>`	`getLongList(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.int64())`.
`List<Long>`	`getLongList(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.int64())`.
`String`	`getString(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.string()`.
`String`	`getString(String columnName)`	Returns the value of a non-`NULL` column with type `Type.string()`.
`List<String>`	`getStringList(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.string())`.
`List<String>`	`getStringList(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.string())`.
`List<Struct>`	`getStructList(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.struct(...))`.
`List<Struct>`	`getStructList(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.struct(...))`.
`com.google.cloud.Timestamp`	`getTimestamp(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.timestamp()`.
`com.google.cloud.Timestamp`	`getTimestamp(String columnName)`	Returns the value of a non-`NULL` column with type `Type.timestamp()`.
`List<com.google.cloud.Timestamp>`	`getTimestampList(int columnIndex)`	Returns the value of a non-`NULL` column with type `Type.array(Type.timestamp())`.
`List<com.google.cloud.Timestamp>`	`getTimestampList(String columnName)`	Returns the value of a non-`NULL` column with type `Type.array(Type.timestamp())`.
`Type`	`getType()`	Returns the type of the underlying data.
`Value`	`getValue(int columnIndex)`	Returns the value of a nullable column as a `Value`.
`Value`	`getValue(String columnName)`	Returns the value of a nullable column as a `Value`.
`boolean`	`isNull(int columnIndex)`	Returns `true` if a column contains a `NULL` value.
`boolean`	`isNull(String columnName)`	Returns `true` if a column contains a `NULL` value.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ForwardingStructReader
```
public ForwardingStructReader(StructReader delegate)
```
  - ForwardingStructReader
```
public ForwardingStructReader(com.google.common.base.Supplier<? extends StructReader> delegate)
```
- Method Detail
  - checkValidState
```
protected void checkValidState()
```
    Called before each forwarding call to allow sub classes to do additional state checking. Sub classes should throw an Exception if the current state is not valid for reading data from this ForwardingStructReader. The default implementation does nothing.
  - getType
```
public Type getType()
```
    Description copied from interface: StructReader
    
    Returns the type of the underlying data. This will always be a STRUCT type, with fields corresponding to the data's columns. For the result of a read or query, this will always match the columns passed to the read() call or named in the query text, in order.
    
    Specified by:
    
    getType in interface StructReader
  - getColumnCount
```
public int getColumnCount()
```
    Description copied from interface: StructReader
    
    Returns the number of columns in the underlying data. This includes any columns with NULL values.
    
    Specified by:
    
    getColumnCount in interface StructReader
  - getColumnIndex
```
public int getColumnIndex(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the index of the column named columnName.
    
    Specified by:
    
    getColumnIndex in interface StructReader
  - getColumnType
```
public Type getColumnType(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the type of a column.
    
    Specified by:
    
    getColumnType in interface StructReader
  - getColumnType
```
public Type getColumnType(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the type of a column.
    
    Specified by:
    
    getColumnType in interface StructReader
  - isNull
```
public boolean isNull(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns true if a column contains a NULL value.
    
    Specified by:
    
    isNull in interface StructReader
  - isNull
```
public boolean isNull(String columnName)
```
    Description copied from interface: StructReader
    
    Returns true if a column contains a NULL value.
    
    Specified by:
    
    isNull in interface StructReader
  - getBoolean
```
public boolean getBoolean(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.bool().
    
    Specified by:
    
    getBoolean in interface StructReader
  - getBoolean
```
public boolean getBoolean(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.bool().
    
    Specified by:
    
    getBoolean in interface StructReader
  - getLong
```
public long getLong(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.int64().
    
    Specified by:
    
    getLong in interface StructReader
  - getLong
```
public long getLong(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.int64().
    
    Specified by:
    
    getLong in interface StructReader
  - getDouble
```
public double getDouble(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.float64().
    
    Specified by:
    
    getDouble in interface StructReader
  - getDouble
```
public double getDouble(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.float64().
    
    Specified by:
    
    getDouble in interface StructReader
  - getBigDecimal
```
public BigDecimal getBigDecimal(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.numeric().
    
    Specified by:
    
    getBigDecimal in interface StructReader
  - getBigDecimal
```
public BigDecimal getBigDecimal(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.numeric().
    
    Specified by:
    
    getBigDecimal in interface StructReader
  - getString
```
public String getString(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.string().
    
    Specified by:
    
    getString in interface StructReader
  - getString
```
public String getString(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.string().
    
    Specified by:
    
    getString in interface StructReader
  - getJson
```
public String getJson(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.string().
    
    Specified by:
    
    getJson in interface StructReader
  - getJson
```
public String getJson(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.string().
    
    Specified by:
    
    getJson in interface StructReader
  - getBytes
```
public com.google.cloud.ByteArray getBytes(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.bytes().
    
    Specified by:
    
    getBytes in interface StructReader
  - getBytes
```
public com.google.cloud.ByteArray getBytes(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.bytes().
    
    Specified by:
    
    getBytes in interface StructReader
  - getTimestamp
```
public com.google.cloud.Timestamp getTimestamp(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.timestamp().
    
    Specified by:
    
    getTimestamp in interface StructReader
  - getTimestamp
```
public com.google.cloud.Timestamp getTimestamp(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.timestamp().
    
    Specified by:
    
    getTimestamp in interface StructReader
  - getDate
```
public com.google.cloud.Date getDate(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.date().
    
    Specified by:
    
    getDate in interface StructReader
  - getDate
```
public com.google.cloud.Date getDate(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.date().
    
    Specified by:
    
    getDate in interface StructReader
  - getBooleanArray
```
public boolean[] getBooleanArray(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.bool()).
    
    Specified by:
    
    getBooleanArray in interface StructReader
  - getBooleanArray
```
public boolean[] getBooleanArray(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.bool()).
    
    Specified by:
    
    getBooleanArray in interface StructReader
  - getBooleanList
```
public List<Boolean> getBooleanList(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.bool()).
    
    Specified by:
    
    getBooleanList in interface StructReader
  - getBooleanList
```
public List<Boolean> getBooleanList(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.bool()).
    
    Specified by:
    
    getBooleanList in interface StructReader
  - getLongArray
```
public long[] getLongArray(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.int64()).
    
    Specified by:
    
    getLongArray in interface StructReader
  - getLongArray
```
public long[] getLongArray(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.int64()).
    
    Specified by:
    
    getLongArray in interface StructReader
  - getLongList
```
public List<Long> getLongList(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.int64()).
    
    Specified by:
    
    getLongList in interface StructReader
  - getLongList
```
public List<Long> getLongList(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.int64()).
    
    Specified by:
    
    getLongList in interface StructReader
  - getDoubleArray
```
public double[] getDoubleArray(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.float64()).
    
    Specified by:
    
    getDoubleArray in interface StructReader
  - getDoubleArray
```
public double[] getDoubleArray(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.float64()).
    
    Specified by:
    
    getDoubleArray in interface StructReader
  - getDoubleList
```
public List<Double> getDoubleList(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.float64()).
    
    Specified by:
    
    getDoubleList in interface StructReader
  - getDoubleList
```
public List<Double> getDoubleList(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.float64()).
    
    Specified by:
    
    getDoubleList in interface StructReader
  - getBigDecimalList
```
public List<BigDecimal> getBigDecimalList(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.numeric()).
    
    Specified by:
    
    getBigDecimalList in interface StructReader
  - getBigDecimalList
```
public List<BigDecimal> getBigDecimalList(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.numeric()).
    
    Specified by:
    
    getBigDecimalList in interface StructReader
  - getStringList
```
public List<String> getStringList(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.string()).
    
    Specified by:
    
    getStringList in interface StructReader
  - getStringList
```
public List<String> getStringList(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.string()).
    
    Specified by:
    
    getStringList in interface StructReader
  - getJsonList
```
public List<String> getJsonList(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.string()).
    
    Specified by:
    
    getJsonList in interface StructReader
  - getJsonList
```
public List<String> getJsonList(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.string()).
    
    Specified by:
    
    getJsonList in interface StructReader
  - getBytesList
```
public List<com.google.cloud.ByteArray> getBytesList(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.bytes()).
    
    Specified by:
    
    getBytesList in interface StructReader
  - getBytesList
```
public List<com.google.cloud.ByteArray> getBytesList(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.bytes()).
    
    Specified by:
    
    getBytesList in interface StructReader
  - getTimestampList
```
public List<com.google.cloud.Timestamp> getTimestampList(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.timestamp()).
    
    Specified by:
    
    getTimestampList in interface StructReader
  - getTimestampList
```
public List<com.google.cloud.Timestamp> getTimestampList(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.timestamp()).
    
    Specified by:
    
    getTimestampList in interface StructReader
  - getDateList
```
public List<com.google.cloud.Date> getDateList(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.date()).
    
    Specified by:
    
    getDateList in interface StructReader
  - getDateList
```
public List<com.google.cloud.Date> getDateList(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.date()).
    
    Specified by:
    
    getDateList in interface StructReader
  - getStructList
```
public List<Struct> getStructList(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.struct(...)).
    
    Specified by:
    
    getStructList in interface StructReader
  - getStructList
```
public List<Struct> getStructList(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a non-NULL column with type Type.array(Type.struct(...)).
    
    Specified by:
    
    getStructList in interface StructReader
  - getValue
```
public Value getValue(int columnIndex)
```
    Description copied from interface: StructReader
    
    Returns the value of a nullable column as a Value.
    
    Specified by:
    
    getValue in interface StructReader
  - getValue
```
public Value getValue(String columnName)
```
    Description copied from interface: StructReader
    
    Returns the value of a nullable column as a Value.
    
    Specified by:
    
    getValue in interface StructReader

Constructor	Description
`ForwardingStructReader(StructReader delegate)`
`ForwardingStructReader(com.google.common.base.Supplier<? extends StructReader> delegate)`

Class ForwardingStructReader

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ForwardingStructReader

ForwardingStructReader

Method Detail

checkValidState

getType

getColumnCount

getColumnIndex

getColumnType

getColumnType

isNull

isNull

getBoolean

getBoolean

getLong

getLong

getDouble

getDouble

getBigDecimal

getBigDecimal

getString

getString

getJson

getJson

getBytes

getBytes

getTimestamp

getTimestamp

getDate

getDate

getBooleanArray

getBooleanArray

getBooleanList

getBooleanList

getLongArray

getLongArray

getLongList

getLongList

getDoubleArray

getDoubleArray

getDoubleList

getDoubleList

getBigDecimalList

getBigDecimalList

getStringList

getStringList

getJsonList

getJsonList

getBytesList

getBytesList

getTimestampList

getTimestampList

getDateList

getDateList

getStructList

getStructList

getValue

getValue