Package org.h2.result
Class Row
- 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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- Direct Known Subclasses:
DefaultRow
public abstract class Row extends SearchRow
Represents a row in a table.
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Field Summary
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Fields inherited from class org.h2.result.SearchRow
key, MATCH_ALL_ROW_KEY, MEMORY_CALCULATE, 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 Row()
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description static Row
get(Value[] data, int memory)
Creates a new row.static Row
get(Value[] data, int memory, long key)
Creates a new row with the specified key.abstract Value[]
getValueList()
Get values.boolean
hasSameValues(Row other)
Check whether values of this row are equal to values of other row.boolean
hasSharedData(Row other)
Check whether this row and the specified row share the same underlying data with values.-
Methods inherited from class org.h2.result.SearchRow
compareTypeSafe, copyFrom, equals, getColumnCount, getKey, getMemory, getSQL, getString, getType, getValue, getValueType, hashCode, isNull, setKey, setValue
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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, toString
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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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Method Detail
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get
public static Row get(Value[] data, int memory)
Creates a new row.- Parameters:
data
- values of columns, or nullmemory
- used memory- Returns:
- the allocated row
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get
public static Row get(Value[] data, int memory, long key)
Creates a new row with the specified key.- Parameters:
data
- values of columns, or nullmemory
- used memorykey
- the key- Returns:
- the allocated row
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getValueList
public abstract Value[] getValueList()
Get values.- Returns:
- values
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hasSameValues
public boolean hasSameValues(Row other)
Check whether values of this row are equal to values of other row.- Parameters:
other
- the other row- Returns:
true
if values are equal,false
otherwise
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hasSharedData
public boolean hasSharedData(Row other)
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.- Parameters:
other
- the other row- Returns:
true
if rows share the same underlying data,false
otherwise or when unknown
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