+
−/*
+
− * This Source Code Form is subject to the terms of the Mozilla Public
+
− * License, v. 2.0.  If a copy of the MPL was not distributed with this
+
− * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
− *
+
− * Copyright 2016 MonetDB B.V.
+
− */
+
−
+
−package nl.cwi.monetdb.embedded.mapping;
+
−
+
−import java.util.Arrays;
+
−import java.util.ListIterator;
+
−
+
−/**
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− * A single MonetDB row in a result set.
+
− *
+
− * @author <a href="mailto:pedro.ferreira@monetdbsolutions.com">Pedro Ferreira</a>
+
− */
+
−public class MonetDBRow implements Iterable {
+
−
+
−    /**
+
−     * The original row result set from this row.
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−     */
+
−    private final AbstractRowSet originalSet;
+
−
+
−    /**
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−     * The columns values as Java objects.
+
−     */
+
−    private Object[] columns;
+
−
+
−    protected MonetDBRow(AbstractRowSet originalSet, Object[] columns) {
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−        this.originalSet = originalSet;
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−        this.columns = columns;
+
−    }
+
−
+
−    /**
+
−     * Gets the original row result set from this row.
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−     *
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−     * @return The original row result set from this row
+
−     */
+
−    public AbstractRowSet getRowSet() { return originalSet; }
+
−
+
−    /**
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−     * Gets the columns values as Java objects.
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−     *
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−     * @return The columns values as Java objects
+
−     */
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−    public Object[] getAllColumns() { return columns; }
+
−
+
−    /**
+
−     * Sets all columns values as Java objects. Warning - this method does not override the contents in the database!
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−     *
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−     * @param values An object array of the elements to update
+
−     */
+
−    public void setAllColumns(Object[] values) {
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−        if(values.length != this.columns.length)
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−            throw new ArrayStoreException("The values array and the columns length differ!");
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−        this.columns = values;
+
−    }
+
−
+
−    /**
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−     * Gets the number of columns.
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−     *
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−     * @return The number of columns
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−     */
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−    public int getNumberOfColumns() { return columns.length; }
+
−
+
−    /**
+
−     * Gets a column value as a Java class.
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−     *
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−     * @param <T> A Java class mapped to a MonetDB data type
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−     * @param index The index of the column
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−     * @param javaClass The Java class
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−     * @return The column value as a Java class
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−     */
+
−    public <T> T getColumnByIndex(int index, Class<T> javaClass) { return javaClass.cast(columns[index]); }
+
−
+
−    /**
+
−     * Gets a column value as a Java class using the default mapping.
+
−     *
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−     * @param <T> A Java class mapped to a MonetDB data type
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−     * @param index The index of the column
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−     * @return The column value as a Java class
+
−     */
+
−    public <T> T getColumnByIndex(int index) {
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−        Class<T> javaClass = this.originalSet.mappings[index].getJavaClass();
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−        return javaClass.cast(columns[index]);
+
−    }
+
−
+
−    /**
+
−     * Gets a column value as a Java class.
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−     *
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−     * @param <T> A Java class mapped to a MonetDB data type
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−     * @param columnName The name of the column
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−     * @param javaClass The Java class
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−     * @return The column value as a Java class
+
−     */
+
−    public <T> T getColumnByName(String columnName, Class<T> javaClass) {
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−        int index =  this.getRowSet().getColumnIndexByName(columnName);
+
−        return javaClass.cast(columns[index]);
+
−    }
+
−
+
−    /**
+
−     * Gets a column value as a Java class using the default mapping.
+
−     *
+
−     * @param <T> A Java class mapped to a MonetDB data type
+
−     * @param columnName The name of the column
+
−     * @return The column value as a Java class
+
−     */
+
−    public <T> T getColumnByName(String columnName) {
+
−        int index =  this.getRowSet().getColumnIndexByName(columnName);
+
−        Class<T> javaClass = this.originalSet.mappings[index].getJavaClass();
+
−        return javaClass.cast(columns[index]);
+
−    }
+
−
+
−    /**
+
−     * Sets a column value as a Java class. Warning - this method does not override the contents in the database!
+
−     *
+
−     * @param <T> A Java class mapped to a MonetDB data type
+
−     * @param index The index of the column
+
−     * @param value The value to set
+
−     */
+
−    public <T> void setColumnByIndex(int index, T value) {
+
−        this.columns[index] = this.originalSet.mappings[index].getJavaClass().cast(value);
+
−    }
+
−
+
−    /**
+
−     * Sets a column value as a Java class. Warning - this method does not override the contents in the database!
+
−     *
+
−     * @param <T> A Java class mapped to a MonetDB data type
+
−     * @param index The index of the column
+
−     * @param javaClass The Java class
+
−     * @param value The value to set
+
−     */
+
−    public <T> void setColumnByIndex(int index, Class<T> javaClass, T value) {
+
−        this.columns[index] = javaClass.cast(value);
+
−    }
+
−
+
−    /**
+
−     * Sets a column value as a Java class. Warning - this method does not override the contents in the database!
+
−     *
+
−     * @param <T> A Java class mapped to a MonetDB data type
+
−     * @param columnName The name of the column
+
−     * @param value The value to set
+
−     */
+
−    public <T> void setColumnByName(String columnName, T value) {
+
−        int index =  this.getRowSet().getColumnIndexByName(columnName);
+
−        this.columns[index] = this.originalSet.mappings[index].getJavaClass().cast(value);
+
−    }
+
−
+
−    /**
+
−     * Sets a column value as a Java class. Warning - this method does not override the contents in the database!
+
−     *
+
−     * @param <T> A Java class mapped to a MonetDB data type
+
−     * @param columnName The name of the column
+
−     * @param javaClass The Java class
+
−     * @param value The value to set
+
−     */
+
−    public <T> void setColumnByName(String columnName, Class<T> javaClass, T value) {
+
−        int index =  this.getRowSet().getColumnIndexByName(columnName);
+
−        this.columns[index] = javaClass.cast(value);
+
−    }
+
−
+
−    @Override
+
−    public ListIterator<Object> iterator() { return Arrays.asList(this.columns).listIterator(); }
+
−}