org.glowroot.shaded.h2.value.ValueBoolean Maven / Gradle / Ivy
/*
* Copyright 2004-2013 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.glowroot.shaded.h2.value;
import java.sql.PreparedStatement;
import java.sql.SQLException;
/**
* Implementation of the BOOLEAN data type.
*/
public 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;
/**
* Of type Object so that Tomcat doesn't set it to null.
*/
private static final Object TRUE = new ValueBoolean(true);
private static final Object FALSE = new ValueBoolean(false);
private final Boolean value;
private ValueBoolean(boolean value) {
this.value = Boolean.valueOf(value);
}
@Override
public int getType() {
return Value.BOOLEAN;
}
@Override
public String getSQL() {
return getString();
}
@Override
public String getString() {
return value.booleanValue() ? "TRUE" : "FALSE";
}
@Override
public Value negate() {
return (ValueBoolean) (value.booleanValue() ? FALSE : TRUE);
}
@Override
public Boolean getBoolean() {
return value;
}
@Override
protected int compareSecure(Value o, CompareMode mode) {
boolean v2 = ((ValueBoolean) o).value.booleanValue();
boolean v = value.booleanValue();
return (v == v2) ? 0 : (v ? 1 : -1);
}
@Override
public long getPrecision() {
return PRECISION;
}
@Override
public int hashCode() {
return value.booleanValue() ? 1 : 0;
}
@Override
public Object getObject() {
return value;
}
@Override
public void set(PreparedStatement prep, int parameterIndex)
throws SQLException {
prep.setBoolean(parameterIndex, value.booleanValue());
}
/**
* Get the boolean value for the given boolean.
*
* @param b the boolean
* @return the value
*/
public static ValueBoolean get(boolean b) {
return (ValueBoolean) (b ? TRUE : FALSE);
}
@Override
public int getDisplaySize() {
return DISPLAY_SIZE;
}
@Override
public boolean equals(Object other) {
// there are only ever two instances, so the instance must match
return this == other;
}
}