com.clickhouse.data.value.ClickHouseByteValue Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of clickhouse-data Show documentation
Show all versions of clickhouse-data Show documentation
Data processing utilities for ClickHouse
package com.clickhouse.data.value;
import java.math.BigDecimal;
import java.math.BigInteger;
import com.clickhouse.data.ClickHouseValue;
import com.clickhouse.data.ClickHouseValues;
/**
* Wrapper class of {@code byte}.
*/
public class ClickHouseByteValue implements ClickHouseValue {
/**
* Unsigned version of {@code ClickHouseByteValue}.
*/
static final class UnsignedByteValue extends ClickHouseByteValue {
protected UnsignedByteValue(boolean isNull, byte value) {
super(isNull, value);
}
@Override
public short asShort() {
return (short) (0xFF & getValue());
}
@Override
public int asInteger() {
return 0xFF & getValue();
}
@Override
public long asLong() {
return 0xFFL & getValue();
}
@Override
public BigInteger asBigInteger() {
return isNullOrEmpty() ? null : BigInteger.valueOf(asLong());
}
@Override
public float asFloat() {
return asInteger();
}
@Override
public double asDouble() {
return asLong();
}
@Override
public BigDecimal asBigDecimal(int scale) {
return isNullOrEmpty() ? null : BigDecimal.valueOf(asLong(), scale);
}
@Override
public Object asObject() {
return isNullOrEmpty() ? null : UnsignedByte.valueOf(getValue());
}
@Override
public String asString() {
return isNullOrEmpty() ? null : Integer.toString(asInteger());
}
@Override
public ClickHouseByteValue copy(boolean deep) {
return new UnsignedByteValue(isNullOrEmpty(), getValue());
}
@Override
public String toSqlExpression() {
return isNullOrEmpty() ? ClickHouseValues.NULL_EXPR : Integer.toString(asInteger());
}
@Override
public ClickHouseByteValue update(BigInteger value) {
return value == null ? resetToNullOrEmpty() : set(false, value.byteValue());
}
@Override
public ClickHouseByteValue update(BigDecimal value) {
return value == null ? resetToNullOrEmpty() : set(false, value.byteValue());
}
@Override
public ClickHouseByteValue update(String value) {
if (value == null) {
resetToNullOrEmpty();
} else if (value.isEmpty()) {
resetToDefault();
} else {
set(false, UnsignedByte.valueOf(value).byteValue());
}
return this;
}
}
/**
* Creates a new instance representing null {@code Int8} value.
*
* @return new instance representing null value
*/
public static ClickHouseByteValue ofNull() {
return ofNull(null, false);
}
/**
* Creates a new instance representing null {@code UInt8} value.
*
* @return new instance representing null value
*/
public static ClickHouseByteValue ofUnsignedNull() {
return ofNull(null, true);
}
/**
* Creates a new instance representing null value.
*
* @param unsigned true if the value is unsigned; false otherwise
* @return new instance representing null value
*/
public static ClickHouseByteValue ofNull(boolean unsigned) {
return ofNull(null, unsigned);
}
/**
* Updates the given value to null or creates a new instance when {@code ref} is
* null.
*
* @param ref object to update, could be null
* @param unsigned true if the value is unsigned; false otherwise
* @return same object as {@code ref} or a new instance if it's null
*/
public static ClickHouseByteValue ofNull(ClickHouseValue ref, boolean unsigned) {
if (unsigned) {
return ref instanceof UnsignedByteValue ? ((UnsignedByteValue) ref).set(true, (byte) 0)
: new UnsignedByteValue(true, (byte) 0);
}
return ref instanceof ClickHouseByteValue ? ((ClickHouseByteValue) ref).set(true, (byte) 0)
: new ClickHouseByteValue(true, (byte) 0);
}
/**
* Wraps the given {@code Int8} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseByteValue of(byte value) {
return of(null, value, false);
}
/**
* Wraps the given {@code UInt8} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseByteValue ofUnsigned(byte value) {
return of(null, value, true);
}
/**
* Wraps the given value.
*
* @param value value
* @param unsigned true if {@code value} is unsigned; false otherwise
* @return object representing the value
*/
public static ClickHouseByteValue of(byte value, boolean unsigned) {
return of(null, value, unsigned);
}
/**
* Wraps the given {@code Int8} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseByteValue of(int value) {
return of(null, (byte) value, false);
}
/**
* Wraps the given {@code UInt8} value.
*
* @param value value
* @return object representing the value
*/
public static ClickHouseByteValue ofUnsigned(int value) {
return of(null, (byte) value, true);
}
/**
* Wraps the given value.
*
* @param value value
* @param unsigned true if {@code value} is unsigned; false otherwise
* @return object representing the value
*/
public static ClickHouseByteValue of(int value, boolean unsigned) {
return of(null, (byte) value, unsigned);
}
/**
* Wraps the given value.
*
* @param value value
* @param unsigned true if {@code value} is unsigned; false otherwise
* @return object representing the value
*/
public static ClickHouseByteValue of(Number value, boolean unsigned) {
return value == null ? ofNull(null, unsigned) : of(null, value.byteValue(), unsigned);
}
/**
* Updates value of the given object or create a new instance when {@code ref}
* is null.
*
* @param ref object to update, could be null
* @param value value
* @param unsigned true if {@code value} is unsigned; false otherwise
* @return same object as {@code ref} or a new instance if it's null
*/
public static ClickHouseByteValue of(ClickHouseValue ref, byte value, boolean unsigned) {
if (unsigned) {
return ref instanceof UnsignedByteValue ? ((UnsignedByteValue) ref).set(false, value)
: new UnsignedByteValue(false, value);
}
return ref instanceof ClickHouseByteValue ? ((ClickHouseByteValue) ref).set(false, value)
: new ClickHouseByteValue(false, value);
}
private boolean isNull;
private byte value;
protected ClickHouseByteValue(boolean isNull, byte value) {
set(isNull, value);
}
protected final ClickHouseByteValue set(boolean isNull, byte value) {
this.isNull = isNull;
this.value = isNull ? (byte) 0 : value;
return this;
}
/**
* Gets value.
*
* @return value
*/
public final byte getValue() {
return value;
}
@Override
public ClickHouseByteValue copy(boolean deep) {
return new ClickHouseByteValue(isNull, value);
}
@Override
public final boolean isNullOrEmpty() {
return isNull;
}
@Override
public byte asByte() {
return value;
}
@Override
public short asShort() {
return value;
}
@Override
public int asInteger() {
return value;
}
@Override
public long asLong() {
return value;
}
@Override
public BigInteger asBigInteger() {
return isNull ? null : BigInteger.valueOf(value);
}
@Override
public float asFloat() {
return value;
}
@Override
public double asDouble() {
return value;
}
@Override
public BigDecimal asBigDecimal(int scale) {
return isNull ? null : BigDecimal.valueOf(value, scale);
}
@Override
public Object asObject() {
return isNull ? null : Byte.valueOf(value);
}
@Override
public String asString() {
return isNull ? null : Byte.toString(value);
}
@Override
public ClickHouseByteValue resetToDefault() {
return set(false, (byte) 0);
}
@Override
public ClickHouseByteValue resetToNullOrEmpty() {
return set(true, (byte) 0);
}
@Override
public String toSqlExpression() {
return isNull ? ClickHouseValues.NULL_EXPR : Byte.toString(value);
}
@Override
public ClickHouseByteValue update(char value) {
return set(false, (byte) value);
}
@Override
public ClickHouseByteValue update(byte value) {
return set(false, value);
}
@Override
public ClickHouseByteValue update(short value) {
return set(false, (byte) value);
}
@Override
public ClickHouseByteValue update(int value) {
return set(false, (byte) value);
}
@Override
public ClickHouseByteValue update(long value) {
return set(false, (byte) value);
}
@Override
public ClickHouseByteValue update(float value) {
return set(false, (byte) value);
}
@Override
public ClickHouseByteValue update(double value) {
return set(false, (byte) value);
}
@Override
public ClickHouseByteValue update(BigInteger value) {
return value == null ? resetToNullOrEmpty() : set(false, value.byteValueExact());
}
@Override
public ClickHouseByteValue update(BigDecimal value) {
return value == null ? resetToNullOrEmpty() : set(false, value.byteValueExact());
}
@Override
public ClickHouseByteValue update(Enum value) {
return value == null ? resetToNullOrEmpty() : set(false, (byte) value.ordinal());
}
@Override
public ClickHouseByteValue update(String value) {
if (value == null) {
resetToNullOrEmpty();
} else if (value.isEmpty()) {
resetToDefault();
} else {
set(false, Byte.parseByte(value));
}
return this;
}
@Override
public ClickHouseByteValue update(ClickHouseValue value) {
return value == null || value.isNullOrEmpty() ? resetToNullOrEmpty() : set(false, value.asByte());
}
@Override
public ClickHouseByteValue update(Object value) {
if (value instanceof Number) {
return set(false, ((Number) value).byteValue());
} else if (value instanceof ClickHouseValue) {
return set(false, ((ClickHouseValue) value).asByte());
}
ClickHouseValue.super.update(value);
return this;
}
@Override
public boolean equals(Object obj) {
if (this == obj) { // too bad this is a mutable class :<
return true;
} else if (obj == null || getClass() != obj.getClass()) {
return false;
}
ClickHouseByteValue v = (ClickHouseByteValue) obj;
return isNull == v.isNull && value == v.value;
}
@Override
public int hashCode() {
// not going to use Objects.hash(isNull, value) due to autoboxing
return (31 + (isNull ? 1231 : 1237)) * 31 + value;
}
@Override
public String toString() {
return ClickHouseValues.convertToString(this);
}
}