/*
* Copyright 2004-2023 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (https://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.value;
import java.math.BigDecimal;
import org.h2.engine.CastDataProvider;
/**
* Implementation of the BOOLEAN data type.
*/
public final class ValueBoolean extends Value {
/**
* The precision in digits.
*/
public static final int PRECISION = 1;
/**
* The maximum display size of a boolean.
* Example: FALSE
*/
public static final int DISPLAY_SIZE = 5;
/**
* TRUE value.
*/
public static final ValueBoolean TRUE = new ValueBoolean(true);
/**
* FALSE value.
*/
public static final ValueBoolean FALSE = new ValueBoolean(false);
private final boolean value;
private ValueBoolean(boolean value) {
this.value = value;
}
@Override
public TypeInfo getType() {
return TypeInfo.TYPE_BOOLEAN;
}
@Override
public int getValueType() {
return BOOLEAN;
}
@Override
public int getMemory() {
// Singleton TRUE and FALSE values
return 0;
}
@Override
public StringBuilder getSQL(StringBuilder builder, int sqlFlags) {
return builder.append(getString());
}
@Override
public String getString() {
return value ? "TRUE" : "FALSE";
}
@Override
public boolean getBoolean() {
return value;
}
@Override
public byte getByte() {
return value ? (byte) 1 : (byte) 0;
}
@Override
public short getShort() {
return value ? (short) 1 : (short) 0;
}
@Override
public int getInt() {
return value ? 1 : 0;
}
@Override
public long getLong() {
return value ? 1L : 0L;
}
@Override
public BigDecimal getBigDecimal() {
return value ? BigDecimal.ONE : BigDecimal.ZERO;
}
@Override
public float getFloat() {
return value ? 1f : 0f;
}
@Override
public double getDouble() {
return value ? 1d : 0d;
}
@Override
public Value negate() {
return value ? FALSE : TRUE;
}
@Override
public int compareTypeSafe(Value o, CompareMode mode, CastDataProvider provider) {
return Boolean.compare(value, ((ValueBoolean) o).value);
}
@Override
public int hashCode() {
return value ? 1 : 0;
}
/**
* Get the boolean value for the given boolean.
*
* @param b the boolean
* @return the value
*/
public static ValueBoolean get(boolean b) {
return b ? TRUE : FALSE;
}
@Override
public boolean equals(Object other) {
// there are only ever two instances, so the instance must match
return this == other;
}
}