com.jk.framework.dao.dynamic.meta.Field.java Source code

Introduction

Here is the source code for com.jk.framework.dao.dynamic.meta.Field.java

Source

/*
 * Copyright 2002-2016 Jalal Kiswani.
 *
 * 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 com.jk.framework.dao.dynamic.meta;

import java.sql.Types;
import java.util.Date;

import org.apache.commons.lang.StringEscapeUtils;

import com.jk.framework.dao.DaoUtil;
import com.jk.framework.dao.sql.query.Operator;
import com.jk.framework.dao.sql.query.QueryComponent;

/**
 * The Class Field.
 *
 * @author Jalal Kiswani
 */
public class Field implements QueryComponent {
    FieldMeta meta;

    Object value;

    /**
     * Instantiates a new field.
     *
     * @param meta
     *            the meta
     */
    public Field(final FieldMeta meta) {
        this.meta = meta;
    }

    /**
     * Instantiates a new field.
     *
     * @param meta
     *            the meta
     * @param value
     *            the value
     */
    public Field(final FieldMeta meta, final Object value) {
        setMeta(meta);
        setValue(value);
    }

    /**
     * Gets the database string.
     *
     * @return the database string
     */
    public String getDatabaseString() {
        if (getValue() == null) {
            return "NULL";
        }
        return "'" + StringEscapeUtils.escapeSql(getValue()) + "'";
    }

    /**
     * Gets the field name.
     *
     * @return the field name
     */
    public String getFieldName() {
        return getMeta().getName();
    }

    /**
     * Gets the meta.
     *
     * @return the meta
     */
    public FieldMeta getMeta() {
        return this.meta;
    }

    /**
     * Gets the sql equality.
     *
     * @return the sql equality
     */
    public String getSqlEquality() {
        if (getValue() == null) {
            return "" + this.meta.getName() + " IS NULL ";
        }
        return "" + this.meta.getName() + " = '" + getValue().toString() + "'";
    }

    /**
     * Gets the value.
     *
     * @return the value
     */
    public String getValue() {
        return getValue(null);
    }

    /**
     * Gets the value.
     *
     * @param defalutValue
     *            the defalut value
     * @return the value
     */
    public String getValue(final String defalutValue) {
        if (this.value == null) {
            return defalutValue;
        }
        return this.value.toString();
    }

    /**
     * Gets the value as boolean.
     *
     * @return the value as boolean
     */
    public Boolean getValueAsBoolean() {
        if (getValue() == null) {
            return false;
        }
        if (getValueObject() instanceof Boolean) {
            return ((Boolean) getValueObject()).booleanValue();
        }
        return getValueObject().toString().equals("1");
        // return null;
    }

    /**
     * Gets the value as double.
     *
     * @return the value as double
     */
    public double getValueAsDouble() {
        return getValueAsDouble(-1);
    }

    /**
     * Gets the value as double.
     *
     * @param defaultValue
     *            the default value
     * @return the value as double
     */
    public double getValueAsDouble(final float defaultValue) {
        if (getValue() == null || getValue().trim().equals("")) {
            return defaultValue;
        }
        if (getMeta().getType() == Types.DATE || getMeta().getType() == Types.TIME) {
            final Date date = (Date) getValueObject();
            return date.getTime();
        }
        return Double.parseDouble(getValue());
    }

    /**
     * Gets the value as float.
     *
     * @return the value as float
     */
    public float getValueAsFloat() {
        return getValueAsFloat(-1);
    }

    /**
     * Gets the value as float.
     *
     * @param defaultValue
     *            the default value
     * @return the value as float
     */
    public float getValueAsFloat(final float defaultValue) {
        if (getValue() == null || getValue().trim().equals("")) {
            return defaultValue;
        }
        if (getMeta().getType() == Types.DATE || getMeta().getType() == Types.TIME) {
            final Date date = (Date) getValueObject();
            return date.getTime();
        }
        return Float.parseFloat(getValue());
    }

    /**
     * Gets the value as integer.
     *
     * @return the value as integer
     */
    public int getValueAsInteger() {
        return getValueAsInteger(-1);
    }

    /**
     * Gets the value as integer.
     *
     * @param defaultValue
     *            the default value
     * @return the value as integer
     */
    public int getValueAsInteger(final int defaultValue) {
        return getValue() == null || getValue().trim().equals("") ? defaultValue : Integer.parseInt(getValue());
    }

    /**
     * Gets the value object.
     *
     * @return the value object
     */
    public Object getValueObject() {
        return this.value;
    }

    /**
     * Gets the value object.
     *
     * @param defaultValue
     *            the default value
     * @return the value object
     */
    public Object getValueObject(final Object defaultValue) {
        return getValueObject() == null ? defaultValue : getValueObject();
    }

    /**
     * Checks if is empty.
     *
     * @return true, if is empty
     */
    public boolean isEmpty() {
        return getValue() == null || getValue().toString().equals("");
    }

    /* (non-Javadoc)
     * @see com.jk.framework.dao.sql.query.QueryComponent#isInline()
     */
    @Override
    public boolean isInline() {
        return true;
    }

    /**
     * Checks if is visible.
     *
     * @return true, if is visible
     */
    public boolean isVisible() {
        return getMeta().isVisible();
    }

    /**
     * Sets the meta.
     *
     * @param meta
     *            the new meta
     */
    public void setMeta(final FieldMeta meta) {
        this.meta = meta;
    }

    /**
     * Sets the value.
     *
     * @param value
     *            the new value
     */
    public void setValue(final Object value) {
        this.value = value;
    }

    /* (non-Javadoc)
     * @see com.jk.framework.dao.sql.query.QueryComponent#toQueryElement()
     */
    @Override
    public Object toQueryElement() {
        return getMeta().getFullQualifiedName() + Operator.EQUAL + getValue();
    }

    /**
     * To sql equality.
     *
     * @return the string
     */
    public String toSqlEquality() {
        final String value = DaoUtil.fixStringValue(getValue());
        if (getValue() == null || getValue().equals("")) {
            return this.meta.getName() + "='' OR " + this.meta.getName() + " IS NULL";
        } else {
            return this.meta.getName() + "='" + (getValue() == null ? "" : value) + "'";
        }
    }

    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        final StringBuffer buffer = new StringBuffer();
        buffer.append(this.meta.toString() + " - Value = ");
        buffer.append(this.value);
        return buffer.toString();
    }
}