Package org.h2.result
Class SearchRow
- Direct Known Subclasses:
Row
,SimpleRowValue
The base class for rows stored in a table, and for partial rows stored in the
index.
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected long
The row key.static long
If the key is this value, then the key is considered equal to all other keys, when comparing.static final int
The constant that means "memory usage is unknown and needs to be calculated first".static final int
Index of a virtual "_ROWID_" column within a row or a tableFields 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
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 -
Method Summary
Modifier and TypeMethodDescriptionint
compareTypeSafe
(Value v, CompareMode mode, CastDataProvider provider) Compare this value against another value given that the values are of the same data type.abstract void
Copy all relevant values from the source to this row.boolean
Check if the two values have the same hash code.abstract int
Get the column count.long
getKey()
Get the unique key of the row.abstract int
Get the estimated memory used for this row, in bytes.getSQL
(StringBuilder builder, int sqlFlags) Appends the SQL statement of this object to the specified builder.Get the value as a string.getType()
Returns the data type.abstract Value
getValue
(int index) Get the value for the columnint
Get the value type.int
hashCode()
boolean
isNull
(int index) Determine if specified column contains NULLvoid
setKey
(long key) Set the unique key of the row.abstract void
Set the value for given columnMethods 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
Methods inherited from class org.h2.value.VersionedValue
getCommittedValue, getCurrentValue, getOperationId, isCommitted
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.h2.util.HasSQL
getSQL, getTraceSQL
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Field Details
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ROWID_INDEX
public static final int ROWID_INDEXIndex of a virtual "_ROWID_" column within a row or a table- See Also:
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MATCH_ALL_ROW_KEY
public static long MATCH_ALL_ROW_KEYIf the key is this value, then the key is considered equal to all other keys, when comparing. -
MEMORY_CALCULATE
public static final int MEMORY_CALCULATEThe constant that means "memory usage is unknown and needs to be calculated first".- See Also:
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key
protected long keyThe row key.
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Constructor Details
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SearchRow
public SearchRow()
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Method Details
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getColumnCount
public abstract int getColumnCount()Get the column count.- Returns:
- the column count
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isNull
public boolean isNull(int index) Determine if specified column contains NULL- Parameters:
index
- column index- Returns:
- true if NULL
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getValue
Get the value for the column- Parameters:
index
- the column number (starting with 0)- Returns:
- the value
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setValue
Set the value for given column- Parameters:
index
- the column number (starting with 0)v
- the new value
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setKey
public void setKey(long key) Set the unique key of the row.- Parameters:
key
- the key
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getKey
public long getKey()Get the unique key of the row.- Returns:
- the key
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getMemory
public abstract int getMemory()Get the estimated memory used for this row, in bytes. -
copyFrom
Copy all relevant values from the source to this row.- Parameters:
source
- source of column values
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getType
Description copied from interface:Typed
Returns the data type. -
getValueType
public int getValueType()Description copied from class:Value
Get the value type.- Specified by:
getValueType
in classValue
- Returns:
- the value type
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getSQL
Description copied from interface:HasSQL
Appends the SQL statement of this object to the specified builder.- Parameters:
builder
- string buildersqlFlags
- formatting flags- Returns:
- the specified string builder
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getString
Description copied from class:Value
Get the value as a string. -
hashCode
public int hashCode() -
equals
Description copied from class:Value
Check if the two values have the same hash code. No data conversion is made; this method returns false if the other object is not of the same class. For some values, compareTo may return 0 even if equals return false. Example: ValueDecimal 0.0 and 0.00. -
compareTypeSafe
Description copied from class:Value
Compare this value against another value given that the values are of the same data type.- Specified by:
compareTypeSafe
in classValue
- Parameters:
v
- the other valuemode
- the compare modeprovider
- the cast information provider- Returns:
- 0 if both values are equal, -1 if the other value is smaller, and 1 otherwise
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