add API to Cursor to get column value type (8b0dd7da) · Commits · e / os / android_frameworks_base

api/current.xml

+127 −5

Original line number	Diff line number	Diff line
		@@ -55658,6 +55658,19 @@
		<parameter name="column" type="int">
		</parameter>
		</method>
		<method name="getType"
		return="int"
		abstract="false"
		native="false"
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		visibility="public"
		>
		<parameter name="column" type="int">
		</parameter>
		</method>
		<method name="getUpdatedField"
		return="java.lang.Object"
		abstract="false"
		@@ -56681,6 +56694,19 @@
		<parameter name="columnIndex" type="int">
		</parameter>
		</method>
		<method name="getType"
		return="int"
		abstract="true"
		native="false"
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		visibility="public"
		>
		<parameter name="columnIndex" type="int">
		</parameter>
		</method>
		<method name="getWantsAllOnMoveCalls"
		return="boolean"
		abstract="true"
		@@ -56921,6 +56947,61 @@
		<parameter name="observer" type="android.database.DataSetObserver">
		</parameter>
		</method>
		<field name="FIELD_TYPE_BLOB"
		type="int"
		transient="false"
		volatile="false"
		value="4"
		static="true"
		final="true"
		deprecated="not deprecated"
		visibility="public"
		>
		</field>
		<field name="FIELD_TYPE_FLOAT"
		type="int"
		transient="false"
		volatile="false"
		value="2"
		static="true"
		final="true"
		deprecated="not deprecated"
		visibility="public"
		>
		</field>
		<field name="FIELD_TYPE_INTEGER"
		type="int"
		transient="false"
		volatile="false"
		value="1"
		static="true"
		final="true"
		deprecated="not deprecated"
		visibility="public"
		>
		</field>
		<field name="FIELD_TYPE_NULL"
		type="int"
		transient="false"
		volatile="false"
		value="0"
		static="true"
		final="true"
		deprecated="not deprecated"
		visibility="public"
		>
		</field>
		<field name="FIELD_TYPE_STRING"
		type="int"
		transient="false"
		volatile="false"
		value="3"
		static="true"
		final="true"
		deprecated="not deprecated"
		visibility="public"
		>
		</field>
		</interface>
		<class name="CursorIndexOutOfBoundsException"
		extends="java.lang.IndexOutOfBoundsException"
		@@ -57278,6 +57359,21 @@
		<parameter name="col" type="int">
		</parameter>
		</method>
		<method name="getType"
		return="int"
		abstract="false"
		native="false"
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		visibility="public"
		>
		<parameter name="row" type="int">
		</parameter>
		<parameter name="col" type="int">
		</parameter>
		</method>
		<method name="isBlob"
		return="boolean"
		abstract="false"
		@@ -57285,7 +57381,7 @@
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		deprecated="deprecated"
		visibility="public"
		>
		<parameter name="row" type="int">
		@@ -57300,7 +57396,7 @@
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		deprecated="deprecated"
		visibility="public"
		>
		<parameter name="row" type="int">
		@@ -57315,7 +57411,7 @@
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		deprecated="deprecated"
		visibility="public"
		>
		<parameter name="row" type="int">
		@@ -57330,7 +57426,7 @@
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		deprecated="deprecated"
		visibility="public"
		>
		<parameter name="row" type="int">
		@@ -57345,7 +57441,7 @@
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		deprecated="deprecated"
		visibility="public"
		>
		<parameter name="row" type="int">
		@@ -57756,6 +57852,19 @@
		<parameter name="columnIndex" type="int">
		</parameter>
		</method>
		<method name="getType"
		return="int"
		abstract="false"
		native="false"
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		visibility="public"
		>
		<parameter name="columnIndex" type="int">
		</parameter>
		</method>
		<method name="getWantsAllOnMoveCalls"
		return="boolean"
		abstract="false"
		@@ -155557,6 +155666,19 @@
		<parameter name="columnIndex" type="int">
		</parameter>
		</method>
		<method name="getType"
		return="int"
		abstract="false"
		native="false"
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		visibility="public"
		>
		<parameter name="columnIndex" type="int">
		</parameter>
		</method>
		<method name="getWantsAllOnMoveCalls"
		return="boolean"
		abstract="false"

core/java/android/database/AbstractCursor.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -51,6 +51,10 @@ public abstract class AbstractCursor implements CrossProcessCursor {
		abstract public double getDouble(int column);
		abstract public boolean isNull(int column);

		public int getType(int column) {
		throw new UnsupportedOperationException();
		}

		// TODO implement getBlob in all cursor types
		public byte[] getBlob(int column) {
		throw new UnsupportedOperationException("getBlob is not supported");

core/java/android/database/AbstractWindowedCursor.java

+14 −41

Original line number	Diff line number	Diff line
		@@ -149,63 +149,36 @@ public abstract class AbstractWindowedCursor extends AbstractCursor
		}
		}

		return mWindow.isNull(mPos, columnIndex);
		return mWindow.getType(mPos, columnIndex) == Cursor.FIELD_TYPE_NULL;
		}

		public boolean isBlob(int columnIndex)
		{
		checkPosition();

		synchronized(mUpdatedRows) {
		if (isFieldUpdated(columnIndex)) {
		Object object = getUpdatedField(columnIndex);
		return object == null \|\| object instanceof byte[];
		}
		}

		return mWindow.isBlob(mPos, columnIndex);
		}

		public boolean isString(int columnIndex)
		{
		checkPosition();

		synchronized(mUpdatedRows) {
		if (isFieldUpdated(columnIndex)) {
		Object object = getUpdatedField(columnIndex);
		return object == null \|\| object instanceof String;
		}
		public boolean isBlob(int columnIndex) {
		return getType(columnIndex) == Cursor.FIELD_TYPE_BLOB;
		}

		return mWindow.isString(mPos, columnIndex);
		public boolean isString(int columnIndex) {
		return getType(columnIndex) == Cursor.FIELD_TYPE_STRING;
		}

		public boolean isLong(int columnIndex)
		{
		checkPosition();

		synchronized(mUpdatedRows) {
		if (isFieldUpdated(columnIndex)) {
		Object object = getUpdatedField(columnIndex);
		return object != null && (object instanceof Integer \|\| object instanceof Long);
		}
		public boolean isLong(int columnIndex) {
		return getType(columnIndex) == Cursor.FIELD_TYPE_INTEGER;
		}

		return mWindow.isLong(mPos, columnIndex);
		public boolean isFloat(int columnIndex) {
		return getType(columnIndex) == Cursor.FIELD_TYPE_FLOAT;
		}

		public boolean isFloat(int columnIndex)
		@Override
		public int getType(int columnIndex)
		{
		checkPosition();

		synchronized(mUpdatedRows) {
		if (isFieldUpdated(columnIndex)) {
		Object object = getUpdatedField(columnIndex);
		return object != null && (object instanceof Float \|\| object instanceof Double);
		return DatabaseUtils.getTypeOfObject(getUpdatedField(columnIndex));
		}
		}

		return mWindow.isFloat(mPos, columnIndex);
		return mWindow.getType(mPos, columnIndex);
		}

		@Override

core/java/android/database/Cursor.java

+40 −0

Original line number	Diff line number	Diff line
		@@ -30,6 +30,25 @@ import java.util.Map;
		* threads should perform its own synchronization when using the Cursor.
		*/
		public interface Cursor {
		/*
		* Values returned by {@link #getType(int)}.
		* These should be consistent with the corresponding types defined in CursorWindow.h
		*/
		/** Value returned by {@link #getType(int)} if the specified column is null */
		static final int FIELD_TYPE_NULL = 0;

		/** Value returned by {@link #getType(int)} if the specified column type is integer */
		static final int FIELD_TYPE_INTEGER = 1;

		/** Value returned by {@link #getType(int)} if the specified column type is float */
		static final int FIELD_TYPE_FLOAT = 2;

		/** Value returned by {@link #getType(int)} if the specified column type is string */
		static final int FIELD_TYPE_STRING = 3;

		/** Value returned by {@link #getType(int)} if the specified column type is blob */
		static final int FIELD_TYPE_BLOB = 4;

		/**
		* Returns the numbers of rows in the cursor.
		*
		@@ -278,6 +297,27 @@ public interface Cursor {
		*/
		double getDouble(int columnIndex);

		/**
		* Returns data type of the given column's value.
		* The preferred type of the column is returned but the data may be converted to other types
		* as documented in the get-type methods such as {@link #getInt(int)}, {@link #getFloat(int)}
		* etc.
		*<p>
		* Returned column types are
		* <ul>
		* <li>{@link #FIELD_TYPE_NULL}</li>
		* <li>{@link #FIELD_TYPE_INTEGER}</li>
		* <li>{@link #FIELD_TYPE_FLOAT}</li>
		* <li>{@link #FIELD_TYPE_STRING}</li>
		* <li>{@link #FIELD_TYPE_BLOB}</li>
		*</ul>
		*</p>
		*
		* @param columnIndex the zero-based index of the target column.
		* @return column value type
		*/
		int getType(int columnIndex);

		/**
		* Returns <code>true</code> if the value in the indicated column is null.
		*

core/java/android/database/CursorWindow.java

+40 −28

Original line number	Diff line number	Diff line
		@@ -217,14 +217,11 @@ public class CursorWindow extends SQLiteClosable implements Parcelable {
		* @param row the row to read from, row - getStartPosition() being the actual row in the window
		* @param col the column to read from
		* @return {@code true} if given field is {@code NULL}
		* @deprecated use {@link #getType(int, int)} instead
		*/
		@Deprecated
		public boolean isNull(int row, int col) {
		acquireReference();
		try {
		return isNull_native(row - mStartPos, col);
		} finally {
		releaseReference();
		}
		return getType(row, col) == Cursor.FIELD_TYPE_NULL;
		}

		private native boolean isNull_native(int row, int col);
		@@ -248,35 +245,55 @@ public class CursorWindow extends SQLiteClosable implements Parcelable {
		private native byte[] getBlob_native(int row, int col);

		/**
		* Checks if a field contains either a blob or is null.
		* Returns data type of the given column's value.
		*<p>
		* Returned column types are
		* <ul>
		* <li>{@link Cursor#FIELD_TYPE_NULL}</li>
		* <li>{@link Cursor#FIELD_TYPE_INTEGER}</li>
		* <li>{@link Cursor#FIELD_TYPE_FLOAT}</li>
		* <li>{@link Cursor#FIELD_TYPE_STRING}</li>
		* <li>{@link Cursor#FIELD_TYPE_BLOB}</li>
		*</ul>
		*</p>
		*
		* @param row the row to read from, row - getStartPosition() being the actual row in the window
		* @param col the column to read from
		* @return {@code true} if given field is {@code NULL} or a blob
		* @return the value type
		*/
		public boolean isBlob(int row, int col) {
		public int getType(int row, int col) {
		acquireReference();
		try {
		return isBlob_native(row - mStartPos, col);
		return getType_native(row - mStartPos, col);
		} finally {
		releaseReference();
		}
		}

		/**
		* Checks if a field contains either a blob or is null.
		*
		* @param row the row to read from, row - getStartPosition() being the actual row in the window
		* @param col the column to read from
		* @return {@code true} if given field is {@code NULL} or a blob
		* @deprecated use {@link #getType(int, int)} instead
		*/
		@Deprecated
		public boolean isBlob(int row, int col) {
		return getType(row, col) == Cursor.FIELD_TYPE_BLOB;
		}

		/**
		* Checks if a field contains a long
		*
		* @param row the row to read from, row - getStartPosition() being the actual row in the window
		* @param col the column to read from
		* @return {@code true} if given field is a long
		* @deprecated use {@link #getType(int, int)} instead
		*/
		@Deprecated
		public boolean isLong(int row, int col) {
		acquireReference();
		try {
		return isInteger_native(row - mStartPos, col);
		} finally {
		releaseReference();
		}
		return getType(row, col) == Cursor.FIELD_TYPE_INTEGER;
		}

		/**
		@@ -285,14 +302,11 @@ public class CursorWindow extends SQLiteClosable implements Parcelable {
		* @param row the row to read from, row - getStartPosition() being the actual row in the window
		* @param col the column to read from
		* @return {@code true} if given field is a float
		* @deprecated use {@link #getType(int, int)} instead
		*/
		@Deprecated
		public boolean isFloat(int row, int col) {
		acquireReference();
		try {
		return isFloat_native(row - mStartPos, col);
		} finally {
		releaseReference();
		}
		return getType(row, col) == Cursor.FIELD_TYPE_FLOAT;
		}

		/**
		@@ -301,20 +315,18 @@ public class CursorWindow extends SQLiteClosable implements Parcelable {
		* @param row the row to read from, row - getStartPosition() being the actual row in the window
		* @param col the column to read from
		* @return {@code true} if given field is {@code NULL} or a String
		* @deprecated use {@link #getType(int, int)} instead
		*/
		@Deprecated
		public boolean isString(int row, int col) {
		acquireReference();
		try {
		return isString_native(row - mStartPos, col);
		} finally {
		releaseReference();
		}
		return getType(row, col) == Cursor.FIELD_TYPE_STRING;
		}

		private native boolean isBlob_native(int row, int col);
		private native boolean isString_native(int row, int col);
		private native boolean isInteger_native(int row, int col);
		private native boolean isFloat_native(int row, int col);
		private native int getType_native(int row, int col);

		/**
		* Returns a String for the given field.