Package org.h2.result
Class DefaultRow
- java.lang.Object
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- org.h2.value.VersionedValue<Value>
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- org.h2.value.Value
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- org.h2.result.SearchRow
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- org.h2.result.Row
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- org.h2.result.DefaultRow
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Field Summary
Fields Modifier and Type Field Description protected Value[]
data
The values of the row (one entry per column).private int
memory
static int
MEMORY_CALCULATE
The constant that means "memory usage is unknown and needs to be calculated first".-
Fields inherited from class org.h2.result.SearchRow
key, MATCH_ALL_ROW_KEY, ROWID_INDEX
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Fields inherited from class org.h2.value.Value
ARRAY, BIGINT, BINARY, BLOB, BOOLEAN, CHAR, CLOB, DATE, DECFLOAT, DOUBLE, EMPTY_VALUES, ENUM, GEOMETRY, INTEGER, INTERVAL_DAY, INTERVAL_DAY_TO_HOUR, INTERVAL_DAY_TO_MINUTE, INTERVAL_DAY_TO_SECOND, INTERVAL_HOUR, INTERVAL_HOUR_TO_MINUTE, INTERVAL_HOUR_TO_SECOND, INTERVAL_MINUTE, INTERVAL_MINUTE_TO_SECOND, INTERVAL_MONTH, INTERVAL_SECOND, INTERVAL_YEAR, INTERVAL_YEAR_TO_MONTH, JAVA_OBJECT, JSON, MIN_LONG_DECIMAL, NULL, NUMERIC, REAL, ROW, SMALLINT, TIME, TIME_TZ, TIMESTAMP, TIMESTAMP_TZ, TINYINT, TYPE_COUNT, UNKNOWN, UUID, VARBINARY, VARCHAR, VARCHAR_IGNORECASE
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Fields inherited from interface org.h2.util.HasSQL
ADD_PLAN_INFORMATION, DEFAULT_SQL_FLAGS, NO_CASTS, QUOTE_ONLY_WHEN_REQUIRED, REPLACE_LOBS_FOR_TRACE, TRACE_SQL_FLAGS
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Constructor Summary
Constructors Constructor Description DefaultRow(int columnCount)
DefaultRow(Value[] data)
DefaultRow(Value[] data, int memory)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected int
calculateMemory()
Calculate the estimated memory used for this row, in bytes.void
copyFrom(SearchRow source)
Copy all relevant values from the source to this row.int
getColumnCount()
Get the column count.int
getMemory()
Get the estimated memory used for this row, in bytes.Value
getValue(int i)
Get the value for the columnValue[]
getValueList()
Get values.boolean
hasSharedData(Row other)
Check whether this row and the specified row share the same underlying data with values.void
setValue(int i, Value v)
Set the value for given columnjava.lang.String
toString()
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Methods inherited from class org.h2.result.Row
get, get, hasSameValues
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Methods inherited from class org.h2.result.SearchRow
compareTypeSafe, equals, getKey, getSQL, getString, getType, getValueType, hashCode, isNull, setKey
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Methods inherited from class org.h2.value.Value
add, castTo, charLength, clearCache, compareTo, compareWithNull, containsNull, convertForAssignTo, convertTo, convertTo, convertTo, convertTo, convertTo, convertToAnyArray, convertToAnyRow, convertToBigint, convertToBoolean, convertToChar, convertToDate, convertToDouble, convertToEnum, convertToGeometry, convertToInt, convertToInt, convertToJavaObject, convertToReal, convertToSmallint, convertToTinyint, convertToUuid, divide, getBigDecimal, getBoolean, getByte, getBytes, getBytesNoCopy, getDouble, getFloat, getHigherOrder, getInputStream, getInputStream, getInt, getLong, getReader, getReader, getShort, getSignum, getTypeName, getUnsupportedExceptionForOperation, isFalse, isTrue, modulus, multiply, negate, octetLength, subtract
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Methods inherited from class org.h2.value.VersionedValue
getCommittedValue, getCurrentValue, getOperationId, isCommitted
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.h2.util.HasSQL
getSQL, getTraceSQL
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Field Detail
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MEMORY_CALCULATE
public static final int MEMORY_CALCULATE
The constant that means "memory usage is unknown and needs to be calculated first".- See Also:
- Constant Field Values
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data
protected final Value[] data
The values of the row (one entry per column).
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memory
private int memory
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Method Detail
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getValue
public Value getValue(int i)
Description copied from class:SearchRow
Get the value for the column
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setValue
public void setValue(int i, Value v)
Description copied from class:SearchRow
Set the value for given column
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getColumnCount
public int getColumnCount()
Description copied from class:SearchRow
Get the column count.- Specified by:
getColumnCount
in classSearchRow
- Returns:
- the column count
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getMemory
public int getMemory()
Description copied from class:SearchRow
Get the estimated memory used for this row, in bytes.
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calculateMemory
protected int calculateMemory()
Calculate the estimated memory used for this row, in bytes.- Returns:
- the memory
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getValueList
public Value[] getValueList()
Description copied from class:Row
Get values.- Specified by:
getValueList
in classRow
- Returns:
- values
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hasSharedData
public boolean hasSharedData(Row other)
Description copied from class:Row
Check whether this row and the specified row share the same underlying data with values. This method must returnfalse
when values are not equal and may return eithertrue
orfalse
when they are equal. This method may be used only for optimizations and should not perform any slow checks, such as equality checks for all pairs of values.- Overrides:
hasSharedData
in classRow
- Parameters:
other
- the other row- Returns:
true
if rows share the same underlying data,false
otherwise or when unknown
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