org.diffkit.db.DKDBTypeInfo.java Source code

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Here is the source code for org.diffkit.db.DKDBTypeInfo.java

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/**
 * Copyright 2010-2011 Joseph Panico
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.diffkit.db;

import org.apache.commons.lang.ClassUtils;
import org.apache.commons.lang.builder.CompareToBuilder;
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.apache.commons.lang.builder.ReflectionToStringBuilder;

import org.diffkit.common.DKValidate;
import org.diffkit.util.DKSqlUtil;

/**
 * @author jpanico
 */
public class DKDBTypeInfo implements Comparable<DKDBTypeInfo> {

    private final DKDBType _type;
    private final int _javaSqlType;
    private final int _maxPrecision;
    private final boolean _isCaseSensitive;

    public DKDBTypeInfo(DKDBType type_, int dataType_, int maxPrecision_, boolean isCaseSensitive_) {
        _type = type_;
        _javaSqlType = dataType_;
        _maxPrecision = maxPrecision_;
        _isCaseSensitive = isCaseSensitive_;
        DKValidate.notNull(_type);
    }

    public static DKDBTypeInfo getDefaultTypeInfo(DKDBType dbType_) {
        if (dbType_ == null)
            return null;
        return new DKDBTypeInfo(dbType_, -9999999, 0, false);
    }

    public DKDBType getType() {
        return _type;
    }

    public String getName() {
        return _type.toString();
    }

    public int getJavaSqlType() {
        return _javaSqlType;
    }

    /**
     * convenience method that delegates to underlying .type
     */
    public DKSqlUtil.ReadType getReadType() {
        return _type.getReadType();
    }

    /**
     * convenience method that delegates to underlying .type
     */
    public DKSqlUtil.WriteType getWriteType() {
        return _type.getWriteType();
    }

    public String toString() {
        return String.format("%s[%s:%s]", ClassUtils.getShortClassName(this.getClass()), _type, _javaSqlType);
    }

    public boolean equals(Object target_) {
        if (target_ == null)
            return false;
        if (target_ == this)
            return true;
        if (target_.getClass() != getClass())
            return false;

        DKDBTypeInfo rhs = (DKDBTypeInfo) target_;

        EqualsBuilder builder = new EqualsBuilder();
        builder.append(_javaSqlType, rhs._javaSqlType);
        return builder.isEquals();
    }

    public int compareTo(DKDBTypeInfo target_) {
        CompareToBuilder builder = new CompareToBuilder();

        builder.append(_javaSqlType, target_._javaSqlType);

        return builder.toComparison();
    }

    public int hashCode() {
        return new HashCodeBuilder(17, 37).append(_javaSqlType).toHashCode();
    }

    public String getDescription() {
        return ReflectionToStringBuilder.toString(this);
    }
}