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h2database
提交 9edf8c8e authored 作者: Evgenij Ryazanov's avatar Evgenij Ryazanov
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Use own constants in ValueDataType

上级 dbca79d7
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正在显示 包含 102 行增加 和 80 行删除
h2/src/main/org/h2/mvstore/db/ValueDataType.java
浏览文件 @ 9edf8c8e
......@@ -60,22 +60,44 @@ import org.h2.value.ValueUuid;
*/
public class ValueDataType implements DataType {
/**
* Storage type for ValueRow.
*/
private static final int ROW = 27;
private static final int INT_0_15 = 32;
private static final int LONG_0_7 = 48;
private static final int DECIMAL_0_1 = 56;
private static final int DECIMAL_SMALL_0 = 58;
private static final int DECIMAL_SMALL = 59;
private static final int DOUBLE_0_1 = 60;
private static final int FLOAT_0_1 = 62;
private static final int BOOLEAN_FALSE = 64;
private static final int BOOLEAN_TRUE = 65;
private static final int INT_NEG = 66;
private static final int LONG_NEG = 67;
private static final int STRING_0_31 = 68;
private static final byte NULL = 0;
private static final byte BYTE = 2;
private static final byte SHORT = 3;
private static final byte INT = 4;
private static final byte LONG = 5;
private static final byte DECIMAL = 6;
private static final byte DOUBLE = 7;
private static final byte FLOAT = 8;
private static final byte TIME = 9;
private static final byte DATE = 10;
private static final byte TIMESTAMP = 11;
private static final byte BYTES = 12;
private static final byte STRING = 13;
private static final byte STRING_IGNORECASE = 14;
private static final byte BLOB = 15;
private static final byte CLOB = 16;
private static final byte ARRAY = 17;
private static final byte RESULT_SET = 18;
private static final byte JAVA_OBJECT = 19;
private static final byte UUID = 20;
private static final byte STRING_FIXED = 21;
private static final byte GEOMETRY = 22;
private static final byte TIMESTAMP_TZ = 24;
private static final byte ENUM = 25;
private static final byte INTERVAL = 26;
private static final byte ROW = 27;
private static final byte INT_0_15 = 32;
private static final byte LONG_0_7 = 48;
private static final byte DECIMAL_0_1 = 56;
private static final byte DECIMAL_SMALL_0 = 58;
private static final byte DECIMAL_SMALL = 59;
private static final byte DOUBLE_0_1 = 60;
private static final byte FLOAT_0_1 = 62;
private static final byte BOOLEAN_FALSE = 64;
private static final byte BOOLEAN_TRUE = 65;
private static final byte INT_NEG = 66;
private static final byte LONG_NEG = 67;
private static final byte STRING_0_31 = 68;
private static final int BYTES_0_31 = 100;
private static final int SPATIAL_KEY_2D = 132;
private static final int CUSTOM_DATA_TYPE = 133;
......@@ -210,41 +232,41 @@ public class ValueDataType implements DataType {
int type = v.getValueType();
switch (type) {
case Value.BOOLEAN:
buff.put((byte) (v.getBoolean() ? BOOLEAN_TRUE : BOOLEAN_FALSE));
buff.put(v.getBoolean() ? BOOLEAN_TRUE : BOOLEAN_FALSE);
break;
case Value.BYTE:
buff.put((byte) type).put(v.getByte());
buff.put(BYTE).put(v.getByte());
break;
case Value.SHORT:
buff.put((byte) type).putShort(v.getShort());
buff.put(SHORT).putShort(v.getShort());
break;
case Value.ENUM:
case Value.INT: {
int x = v.getInt();
if (x < 0) {
buff.put((byte) INT_NEG).putVarInt(-x);
buff.put(INT_NEG).putVarInt(-x);
} else if (x < 16) {
buff.put((byte) (INT_0_15 + x));
} else {
buff.put((byte) type).putVarInt(x);
buff.put(type == Value.INT ? INT : ENUM).putVarInt(x);
}
break;
}
case Value.LONG: {
long x = v.getLong();
if (x < 0) {
buff.put((byte) LONG_NEG).putVarLong(-x);
buff.put(LONG_NEG).putVarLong(-x);
} else if (x < 8) {
buff.put((byte) (LONG_0_7 + x));
} else {
buff.put((byte) type).putVarLong(x);
buff.put(LONG).putVarLong(x);
}
break;
}
case Value.DECIMAL: {
BigDecimal x = v.getBigDecimal();
if (BigDecimal.ZERO.equals(x)) {
buff.put((byte) DECIMAL_0_1);
buff.put(DECIMAL_0_1);
} else if (BigDecimal.ONE.equals(x)) {
buff.put((byte) (DECIMAL_0_1 + 1));
} else {
......@@ -253,16 +275,16 @@ public class ValueDataType implements DataType {
int bits = b.bitLength();
if (bits <= 63) {
if (scale == 0) {
buff.put((byte) DECIMAL_SMALL_0).
buff.put(DECIMAL_SMALL_0).
putVarLong(b.longValue());
} else {
buff.put((byte) DECIMAL_SMALL).
buff.put(DECIMAL_SMALL).
putVarInt(scale).
putVarLong(b.longValue());
}
} else {
byte[] bytes = b.toByteArray();
buff.put((byte) type).
buff.put(DECIMAL).
putVarInt(scale).
putVarInt(bytes.length).
put(bytes);
......@@ -275,14 +297,14 @@ public class ValueDataType implements DataType {
long nanos = t.getNanos();
long millis = nanos / 1000000;
nanos -= millis * 1000000;
buff.put((byte) type).
buff.put(TIME).
putVarLong(millis).
putVarLong(nanos);
break;
}
case Value.DATE: {
long x = ((ValueDate) v).getDateValue();
buff.put((byte) type).putVarLong(x);
buff.put(DATE).putVarLong(x);
break;
}
case Value.TIMESTAMP: {
......@@ -291,7 +313,7 @@ public class ValueDataType implements DataType {
long nanos = ts.getTimeNanos();
long millis = nanos / 1000000;
nanos -= millis * 1000000;
buff.put((byte) type).
buff.put(TIMESTAMP).
putVarLong(dateValue).
putVarLong(millis).
putVarLong(nanos);
......@@ -303,7 +325,7 @@ public class ValueDataType implements DataType {
long nanos = ts.getTimeNanos();
long millis = nanos / 1000000;
nanos -= millis * 1000000;
buff.put((byte) type).
buff.put(TIMESTAMP_TZ).
putVarLong(dateValue).
putVarLong(millis).
putVarLong(nanos).
......@@ -312,7 +334,7 @@ public class ValueDataType implements DataType {
}
case Value.JAVA_OBJECT: {
byte[] b = v.getBytesNoCopy();
buff.put((byte) type).
buff.put(JAVA_OBJECT).
putVarInt(b.length).
put(b);
break;
......@@ -324,7 +346,7 @@ public class ValueDataType implements DataType {
buff.put((byte) (BYTES_0_31 + len)).
put(b);
} else {
buff.put((byte) type).
buff.put(BYTES).
putVarInt(b.length).
put(b);
}
......@@ -332,7 +354,7 @@ public class ValueDataType implements DataType {
}
case Value.UUID: {
ValueUuid uuid = (ValueUuid) v;
buff.put((byte) type).
buff.put(UUID).
putLong(uuid.getHigh()).
putLong(uuid.getLow());
break;
......@@ -344,14 +366,17 @@ public class ValueDataType implements DataType {
buff.put((byte) (STRING_0_31 + len)).
putStringData(s, len);
} else {
buff.put((byte) type);
buff.put(STRING);
writeString(buff, s);
}
break;
}
case Value.STRING_IGNORECASE:
buff.put(STRING_IGNORECASE);
writeString(buff, v.getString());
break;
case Value.STRING_FIXED:
buff.put((byte) type);
buff.put(STRING_FIXED);
writeString(buff, v.getString());
break;
case Value.DOUBLE: {
......@@ -361,9 +386,9 @@ public class ValueDataType implements DataType {
} else {
long d = Double.doubleToLongBits(x);
if (d == ValueDouble.ZERO_BITS) {
buff.put((byte) DOUBLE_0_1);
buff.put(DOUBLE_0_1);
} else {
buff.put((byte) type).
buff.put(DOUBLE).
putVarLong(Long.reverse(d));
}
}
......@@ -376,9 +401,9 @@ public class ValueDataType implements DataType {
} else {
int f = Float.floatToIntBits(x);
if (f == ValueFloat.ZERO_BITS) {
buff.put((byte) FLOAT_0_1);
buff.put(FLOAT_0_1);
} else {
buff.put((byte) type).
buff.put(FLOAT).
putVarInt(Integer.reverse(f));
}
}
......@@ -386,7 +411,7 @@ public class ValueDataType implements DataType {
}
case Value.BLOB:
case Value.CLOB: {
buff.put((byte) type);
buff.put(type == Value.BLOB ? BLOB : CLOB);
ValueLobDb lob = (ValueLobDb) v;
byte[] small = lob.getSmall();
if (small == null) {
......@@ -403,7 +428,7 @@ public class ValueDataType implements DataType {
case Value.ARRAY:
case Value.ROW: {
Value[] list = ((ValueCollectionBase) v).getList();
buff.put((byte) (type == Value.ARRAY ? Value.ARRAY : /* Special storage type for ValueRow */ ROW))
buff.put(type == Value.ARRAY ? ARRAY : ROW)
.putVarInt(list.length);
for (Value x : list) {
writeValue(buff, x);
......@@ -411,7 +436,7 @@ public class ValueDataType implements DataType {
break;
}
case Value.RESULT_SET: {
buff.put((byte) type);
buff.put(RESULT_SET);
ResultInterface result = ((ValueResultSet) v).getResult();
int columnCount = result.getVisibleColumnCount();
buff.putVarInt(columnCount);
......@@ -436,7 +461,7 @@ public class ValueDataType implements DataType {
case Value.GEOMETRY: {
byte[] b = v.getBytes();
int len = b.length;
buff.put((byte) type).
buff.put(GEOMETRY).
putVarInt(len).
put(b);
break;
......@@ -451,7 +476,7 @@ public class ValueDataType implements DataType {
if (interval.isNegative()) {
ordinal = ~ordinal;
}
buff.put((byte) Value.INTERVAL_YEAR).
buff.put(INTERVAL).
put((byte) ordinal).
putVarLong(interval.getLeading());
break;
......@@ -469,7 +494,7 @@ public class ValueDataType implements DataType {
if (interval.isNegative()) {
ordinal = ~ordinal;
}
buff.put((byte) Value.INTERVAL_YEAR).
buff.put(INTERVAL).
put((byte) (ordinal)).
putVarLong(interval.getLeading()).
putVarLong(interval.getRemaining());
......@@ -501,7 +526,7 @@ public class ValueDataType implements DataType {
private Object readValue(ByteBuffer buff) {
int type = buff.get() & 255;
switch (type) {
case Value.NULL:
case NULL:
return ValueNull.INSTANCE;
case BOOLEAN_TRUE:
return ValueBoolean.TRUE;
......@@ -509,16 +534,16 @@ public class ValueDataType implements DataType {
return ValueBoolean.FALSE;
case INT_NEG:
return ValueInt.get(-readVarInt(buff));
case Value.ENUM:
case Value.INT:
case ENUM:
case INT:
return ValueInt.get(readVarInt(buff));
case LONG_NEG:
return ValueLong.get(-readVarLong(buff));
case Value.LONG:
case LONG:
return ValueLong.get(readVarLong(buff));
case Value.BYTE:
case BYTE:
return ValueByte.get(buff.get());
case Value.SHORT:
case SHORT:
return ValueShort.get(buff.getShort());
case DECIMAL_0_1:
return ValueDecimal.ZERO;
......@@ -532,7 +557,7 @@ public class ValueDataType implements DataType {
return ValueDecimal.get(BigDecimal.valueOf(
readVarLong(buff), scale));
}
case Value.DECIMAL: {
case DECIMAL: {
int scale = readVarInt(buff);
int len = readVarInt(buff);
byte[] buff2 = Utils.newBytes(len);
......@@ -540,45 +565,45 @@ public class ValueDataType implements DataType {
BigInteger b = new BigInteger(buff2);
return ValueDecimal.get(new BigDecimal(b, scale));
}
case Value.DATE: {
case DATE: {
return ValueDate.fromDateValue(readVarLong(buff));
}
case Value.TIME: {
case TIME: {
long nanos = readVarLong(buff) * 1000000 + readVarLong(buff);
return ValueTime.fromNanos(nanos);
}
case Value.TIMESTAMP: {
case TIMESTAMP: {
long dateValue = readVarLong(buff);
long nanos = readVarLong(buff) * 1000000 + readVarLong(buff);
return ValueTimestamp.fromDateValueAndNanos(dateValue, nanos);
}
case Value.TIMESTAMP_TZ: {
case TIMESTAMP_TZ: {
long dateValue = readVarLong(buff);
long nanos = readVarLong(buff) * 1000000 + readVarLong(buff);
short tz = (short) readVarInt(buff);
return ValueTimestampTimeZone.fromDateValueAndNanos(dateValue, nanos, tz);
}
case Value.BYTES: {
case BYTES: {
int len = readVarInt(buff);
byte[] b = Utils.newBytes(len);
buff.get(b, 0, len);
return ValueBytes.getNoCopy(b);
}
case Value.JAVA_OBJECT: {
case JAVA_OBJECT: {
int len = readVarInt(buff);
byte[] b = Utils.newBytes(len);
buff.get(b, 0, len);
return ValueJavaObject.getNoCopy(null, b, handler);
}
case Value.UUID:
case UUID:
return ValueUuid.get(buff.getLong(), buff.getLong());
case Value.STRING:
case STRING:
return ValueString.get(readString(buff));
case Value.STRING_IGNORECASE:
case STRING_IGNORECASE:
return ValueStringIgnoreCase.get(readString(buff));
case Value.STRING_FIXED:
case STRING_FIXED:
return ValueStringFixed.get(readString(buff));
case Value.INTERVAL_YEAR: {
case INTERVAL: {
int ordinal = buff.get();
boolean negative = ordinal < 0;
if (negative) {
......@@ -595,41 +620,38 @@ public class ValueDataType implements DataType {
return ValueDouble.ZERO;
case DOUBLE_0_1 + 1:
return ValueDouble.ONE;
case Value.DOUBLE:
return ValueDouble.get(Double.longBitsToDouble(
Long.reverse(readVarLong(buff))));
case Value.FLOAT:
return ValueFloat.get(Float.intBitsToFloat(
Integer.reverse(readVarInt(buff))));
case Value.BLOB:
case Value.CLOB: {
case DOUBLE:
return ValueDouble.get(Double.longBitsToDouble(Long.reverse(readVarLong(buff))));
case FLOAT:
return ValueFloat.get(Float.intBitsToFloat(Integer.reverse(readVarInt(buff))));
case BLOB:
case CLOB: {
int smallLen = readVarInt(buff);
if (smallLen >= 0) {
byte[] small = Utils.newBytes(smallLen);
buff.get(small, 0, smallLen);
return ValueLobDb.createSmallLob(type, small);
return ValueLobDb.createSmallLob(type == BLOB ? Value.BLOB : Value.CLOB, small);
} else if (smallLen == -3) {
int tableId = readVarInt(buff);
long lobId = readVarLong(buff);
long precision = readVarLong(buff);
return ValueLobDb.create(type,
return ValueLobDb.create(type == BLOB ? Value.BLOB : Value.CLOB,
handler, tableId, lobId, null, precision);
} else {
throw DbException.get(ErrorCode.FILE_CORRUPTED_1,
"lob type: " + smallLen);
}
}
case Value.ARRAY:
case ROW: // Special storage type for ValueRow
{
case ARRAY:
case ROW: {
int len = readVarInt(buff);
Value[] list = new Value[len];
for (int i = 0; i < len; i++) {
list[i] = (Value) readValue(buff);
}
return type == Value.ARRAY ? ValueArray.get(list) : ValueRow.get(list);
return type == ARRAY ? ValueArray.get(list) : ValueRow.get(list);
}
case Value.RESULT_SET: {
case RESULT_SET: {
SimpleResult rs = new SimpleResult();
int columns = readVarInt(buff);
for (int i = 0; i < columns; i++) {
......@@ -645,7 +667,7 @@ public class ValueDataType implements DataType {
}
return ValueResultSet.get(rs);
}
case Value.GEOMETRY: {
case GEOMETRY: {
int len = readVarInt(buff);
byte[] b = Utils.newBytes(len);
buff.get(b, 0, len);
......
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